An update for dhcp is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.

Security Fix(es) :

* dhcp: double-deletion of the released addresses in the dhcpv6 code leading to crash and possible DoS (CVE-2019-6470)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for bind is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

The following packages have been upgraded to a later upstream version:
bind (9.11.4). (BZ#1640561)

Security Fix(es) :

* bind: Incorrect documentation of krb5-subdomain and ms-subdomain update policies (CVE-2018-5741)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for libtiff is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files.

Security Fix(es) :

* libtiff: buffer overflow in gif2tiff (CVE-2016-3186)

* libtiff: Heap-based buffer overflow in the cpSeparateBufToContigBuf function resulting in a denial of service or possibly code execution (CVE-2018-12900)

* libtiff: Out-of-bounds write in tif_jbig.c (CVE-2018-18557)

* libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDirectory() causes a denial of service (CVE-2018-7456)

* libtiff: heap-based buffer overflow in tif_lzw.c:LZWDecodeCompat() allows for denial of service (CVE-2018-8905)

* libtiff: heap-based buffer over-read in TIFFWriteScanline function in tif_write.c (CVE-2018-10779)

* libtiff: reachable assertion in TIFFWriteDirectorySec function in tif_dirwrite.c (CVE-2018-10963)

* libtiff: Integer overflow in multiply_ms in tools/ppm2tiff.c (CVE-2018-17100)

* libtiff: Two out-of-bounds writes in cpTags in tools/tiff2bw.c and tools/ pal2rgb.c (CVE-2018-17101)

* libtiff: tiff2bw tool failed memory allocation leads to crash (CVE-2018-18661)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for libjpeg-turbo is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libjpeg-turbo packages contain a library of functions for manipulating JPEG images. They also contain simple client programs for accessing the libjpeg functions. These packages provide the same functionality and API as libjpeg but with better performance.

Security Fix(es) :

* libjpeg: NULL pointer dereference in cjpeg (CVE-2016-3616)

* libjpeg-turbo: heap-based buffer over-read via crafted 8-bit BMP in get_8bit_row in rdbmp.c leads to denial of service (CVE-2018-14498)

* libjpeg-turbo: Divide By Zero in alloc_sarray function in jmemmgr.c (CVE-2018-11212)

* libjpeg: Segmentation fault in get_text_gray_row function in rdppm.c (CVE-2018-11213)

* libjpeg: Segmentation fault in get_text_rgb_row function in rdppm.c (CVE-2018-11214)

* libjpeg: 'cjpeg' utility large loop because read_pixel in rdtarga.c mishandles EOF (CVE-2018-11813)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for compat-libtiff3 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The compat-libtiff3 package provides libtiff 3, an older version of libtiff library for manipulating TIFF (Tagged Image File Format) image format files.

Security Fix(es) :

* libtiff: NULL pointer dereference in tif_print.c:TIFFPrintDirectory() causes a denial of service (CVE-2018-7456)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for libmspack is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libmspack packages contain a library providing compression and extraction of the Cabinet (CAB) file format used by Microsoft.

Security Fix(es) :

* libmspack: Out-of-bounds write in mspack/cab.h (CVE-2018-18584)

* libmspack: chmd_read_headers() fails to reject filenames containing NULL bytes (CVE-2018-18585)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for exempi is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

Exempi provides a library for easy parsing of XMP metadata. It is a port of Adobe XMP SDK to work on UNIX and to be build with GNU automake. It includes XMPCore and XMPFiles.

Security Fix(es) :

* exempi: Infinite Loop in Chunk class in XMPFiles/source/FormatSupport/ RIFF.cpp (CVE-2017-18233)

* exempi: Use after free via a PDF file containing JPEG data (CVE-2017-18234)

* exempi: Infinite loop in ASF_Support::ReadHeaderObject function in XMPFiles /source/FormatSupport/ASF_Support.cpp (CVE-2017-18236)

* exempi: Infinite loop in TradQT_Manager::ParseCachedBoxes function in XMPFiles/source/FormatSupport/QuickTime_Support.cpp (CVE-2017-18238)

* exempi: Heap-based buffer overflow in PSD_MetaHandler::CacheFileData function in XMPFiles/source/FormatSupport/PSIR_FileWriter.cpp allows for denial of service via crafted XLS file (CVE-2018-7730)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for libcgroup is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libcgroup packages provide tools and libraries to control and monitor control groups.

Security Fix(es) :

* libcgroup: cgrulesengd creates log files with insecure permissions (CVE-2018-14348)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for polkit is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The polkit packages provide a component for controlling system-wide privileges. This component provides a uniform and organized way for non-privileged processes to communicate with privileged ones.

Security Fix(es) :

* polkit: Improper handling of user with uid > INT_MAX leading to authentication bypass (CVE-2018-19788)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for fence-agents is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be forcibly restarted and removed from the cluster.

Security Fix(es) :

* fence-agents: mis-handling of non-ASCII characters in guest comment fields (CVE-2019-10153)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for python-requests is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The python-requests package contains a library designed to make HTTP requests easy for developers.

Security Fix(es) :

* python-requests: Redirect from HTTPS to HTTP does not remove Authorization header (CVE-2018-18074)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for patch is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The patch program applies diff files to originals. The diff command is used to compare an original to a changed file. Diff lists the changes made to the file. A person who has the original file can then use the patch command with the diff file to add the changes to their original file (patching the file).

Security Fix(es) :

* patch: Out-of-bounds access in pch_write_line function in pch.c (CVE-2016-10713)

* patch: Double free of memory in pch.c:another_hunk() causes a crash (CVE-2018-6952)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for python is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es) :

* python: Missing salt initialization in _elementtree.c module (CVE-2018-14647)

* python: NULL pointer dereference using a specially crafted X509 certificate (CVE-2019-5010)

* python: CRLF injection via the query part of the url passed to urlopen() (CVE-2019-9740)

* python: CRLF injection via the path part of the url passed to urlopen() (CVE-2019-9947)

* python: Undocumented local_file protocol allows remote attackers to bypass protection mechanisms (CVE-2019-9948)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for ruby is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.

Security Fix(es) :

* ruby: HTTP response splitting in WEBrick (CVE-2017-17742)

* ruby: DoS by large request in WEBrick (CVE-2018-8777)

* ruby: Buffer under-read in String#unpack (CVE-2018-8778)

* ruby: Unintentional directory traversal by poisoned NULL byte in Dir (CVE-2018-8780)

* ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396)

* rubygems: Path traversal when writing to a symlinked basedir outside of the root (CVE-2018-1000073)

* rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML (CVE-2018-1000074)

* rubygems: Improper verification of signatures in tarball allows to install mis-signed gem (CVE-2018-1000076)

* rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL (CVE-2018-1000077)

* rubygems: XSS vulnerability in homepage attribute when displayed via gem server (CVE-2018-1000078)

* rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations (CVE-2018-1000079)

* ruby: Unintentional file and directory creation with directory traversal in tempfile and tmpdir (CVE-2018-6914)

* ruby: Unintentional socket creation by poisoned NULL byte in UNIXServer and UNIXSocket (CVE-2018-8779)

* rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service (CVE-2018-1000075)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for poppler, evince, and okular is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Poppler is a Portable Document Format (PDF) rendering library, used by applications such as Evince or Okular.

Security Fix(es) :

* poppler: heap-based buffer over-read in XRef::getEntry in XRef.cc (CVE-2019-7310)

* poppler: heap-based buffer overflow in function ImageStream::getLine() in Stream.cc (CVE-2019-9200)

* poppler: infinite recursion in Parser::getObj function in Parser.cc (CVE-2018-16646)

* poppler: memory leak in GfxColorSpace::setDisplayProfile in GfxState.cc (CVE-2018-18897)

* poppler: reachable abort in Object.h (CVE-2018-19058)

* poppler: out-of-bounds read in EmbFile::save2 in FileSpec.cc (CVE-2018-19059)

* poppler: pdfdetach utility does not validate save paths (CVE-2018-19060)

* poppler: NULL pointer dereference in _poppler_attachment_new (CVE-2018-19149)

* poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc (CVE-2018-20481)

* poppler: reachable Object::dictLookup assertion in FileSpec class in FileSpec.cc (CVE-2018-20650)

* poppler: SIGABRT PDFDoc::setup class in PDFDoc.cc (CVE-2018-20662)

* poppler: heap-based buffer over-read in function downsample_row_box_filter in CairoRescaleBox.cc (CVE-2019-9631)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for zsh is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.

Security Fix(es) :

* zsh: Improper handling of shebang line longer than 64 (CVE-2018-13259)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

An update for kernel is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* Kernel: page cache side channel attacks (CVE-2019-5489)

* kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial-of-service (CVE-2017-17805)

* kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks (CVE-2018-17972)

* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* OOPS with NULL pointer exception in v4l2_ctrl_query_menu when second arg of function is NULL (BZ#1647975)

* Another RHEL 6 hang in congestion_wait() (BZ#1658254)

* kernel crash after running user space script (BZ#1663262)

* RHEL-6.10: Don't report the use of retpoline on Skylake as vulnerable (BZ# 1666102)

* Bad pagetable: 000f '*pdpt = 0000000000000000 *pde = 0000000000000000' RHEL 6 32bit (BZ#1702782)

* fs/binfmt_misc.c: do not allow offset overflow [6.10.z] (BZ#1710149)

* Wrong spectre backport causing linux headers to break compilation of 3rd party packages (BZ#1722185)

An update for openssl is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es) :

* openssl: 0-byte record padding oracle (CVE-2019-1559)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for httpd is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es) :

* httpd: Weak Digest auth nonce generation in mod_auth_digest (CVE-2018-1312)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for 389-ds-base is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

389 Directory Server is an LDAP version 3 (LDAPv3) compliant server.
The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration.

Security Fix(es) :

* 389-ds-base: DoS via hanging secured connections (CVE-2019-3883)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* Previously, if you were using the PAM plugin and attempted to bind as a dn that doesn't exist, the server would crash. This has now been fixed. (BZ# 1718184)

An update for libssh2 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libssh2 packages provide a library that implements the SSH2 protocol.

Security Fix(es) :

* libssh2: Out-of-bounds memory comparison with specially crafted message channel request (CVE-2019-3862)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es) :

* QEMU: slirp: heap buffer overflow in tcp_emu() (CVE-2019-6778)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for curl is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es) :

* curl: NTLM password overflow via integer overflow (CVE-2018-14618)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* baseurl with file:// hangs and then timeout in yum repo (BZ#1709474)

* curl crashes on http links with rate-limit (BZ#1711914)

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

* kernel: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege escalation (CVE-2019-11085)

* kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) and Enhancement(s) :

These updated kernel packages include also numerous bug fixes and add several enhancements. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https:// access.redhat.com/articles/4309211

An update for java-1.7.0-openjdk is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The java-1.7.0-openjdk packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Java Software Development Kit.

Security Fix(es) :

* OpenJDK: Side-channel attack risks in Elliptic Curve (EC) cryptography (Security, 8208698) (CVE-2019-2745)

* OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328) (CVE-2019-2762)

* OpenJDK: Unbounded memory allocation during deserialization in Collections (Utilities, 8213432) (CVE-2019-2769)

* OpenJDK: Missing URL format validation (Networking, 8221518) (CVE-2019-2816)

* OpenJDK: Missing array bounds check in crypto providers (JCE, 8223511) (CVE-2019-2842)

* OpenJDK: Insufficient restriction of privileges in AccessController (Security, 8216381) (CVE-2019-2786)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for java-1.7.0-openjdk is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The java-1.7.0-openjdk packages provide the OpenJDK 7 Java Runtime Environment and the OpenJDK 7 Java Software Development Kit.

Security Fix(es) :

* OpenJDK: Side-channel attack risks in Elliptic Curve (EC) cryptography (Security, 8208698) (CVE-2019-2745)

* OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328) (CVE-2019-2762)

* OpenJDK: Unbounded memory allocation during deserialization in Collections (Utilities, 8213432) (CVE-2019-2769)

* OpenJDK: Missing URL format validation (Networking, 8221518) (CVE-2019-2816)

* OpenJDK: Missing array bounds check in crypto providers (JCE, 8223511) (CVE-2019-2842)

* OpenJDK: Insufficient restriction of privileges in AccessController (Security, 8216381) (CVE-2019-2786)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for java-1.8.0-openjdk is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Security Fix(es) :

* OpenJDK: Side-channel attack risks in Elliptic Curve (EC) cryptography (Security, 8208698) (CVE-2019-2745)

* OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328) (CVE-2019-2762)

* OpenJDK: Unbounded memory allocation during deserialization in Collections (Utilities, 8213432) (CVE-2019-2769)

* OpenJDK: Missing URL format validation (Networking, 8221518) (CVE-2019-2816)

* OpenJDK: Missing array bounds check in crypto providers (JCE, 8223511) (CVE-2019-2842)

* OpenJDK: Insufficient restriction of privileges in AccessController (Security, 8216381) (CVE-2019-2786)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for java-1.8.0-openjdk is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The java-1.8.0-openjdk packages provide the OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit.

Security Fix(es) :

* OpenJDK: Side-channel attack risks in Elliptic Curve (EC) cryptography (Security, 8208698) (CVE-2019-2745)

* OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328) (CVE-2019-2762)

* OpenJDK: Unbounded memory allocation during deserialization in Collections (Utilities, 8213432) (CVE-2019-2769)

* OpenJDK: Missing URL format validation (Networking, 8221518) (CVE-2019-2816)

* OpenJDK: Missing array bounds check in crypto providers (JCE, 8223511) (CVE-2019-2842)

* OpenJDK: Insufficient restriction of privileges in AccessController (Security, 8216381) (CVE-2019-2786)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for java-11-openjdk is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The java-11-openjdk packages provide the OpenJDK 11 Java Runtime Environment and the OpenJDK 11 Java Software Development Kit.

Security Fix(es) :

* OpenJDK: Side-channel attack risks in Elliptic Curve (EC) cryptography (Security, 8208698) (CVE-2019-2745)

* OpenJDK: Insufficient checks of suppressed exceptions in deserialization (Utilities, 8212328) (CVE-2019-2762)

* OpenJDK: Unbounded memory allocation during deserialization in Collections (Utilities, 8213432) (CVE-2019-2769)

* OpenJDK: Missing URL format validation (Networking, 8221518) (CVE-2019-2816)

* OpenJDK: Incorrect handling of certificate status messages during TLS handshake (JSSE, 8222678) (CVE-2019-2821)

* OpenJDK: Insufficient restriction of privileges in AccessController (Security, 8216381) (CVE-2019-2786)

* OpenJDK: Non-constant time comparison in ChaCha20Cipher (Security, 8221344) (CVE-2019-2818)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for thunderbird is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.8.0.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 68 and Firefox ESR 60.8 (CVE-2019-11709)

* Mozilla: Sandbox escape via installation of malicious language pack (CVE-2019-9811)

* Mozilla: Script injection within domain through inner window reuse (CVE-2019-11711)

* Mozilla: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects (CVE-2019-11712)

* Mozilla: Use-after-free with HTTP/2 cached stream (CVE-2019-11713)

* Mozilla: HTML parsing error can contribute to content XSS (CVE-2019-11715)

* Mozilla: Caret character improperly escaped in origins (CVE-2019-11717)

* Mozilla: Same-origin policy treats all files in a directory as having the same-origin (CVE-2019-11730)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.8.0.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 68 and Firefox ESR 60.8 (CVE-2019-11709)

* Mozilla: Sandbox escape via installation of malicious language pack (CVE-2019-9811)

* Mozilla: Script injection within domain through inner window reuse (CVE-2019-11711)

* Mozilla: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects (CVE-2019-11712)

* Mozilla: Use-after-free with HTTP/2 cached stream (CVE-2019-11713)

* Mozilla: HTML parsing error can contribute to content XSS (CVE-2019-11715)

* Mozilla: Caret character improperly escaped in origins (CVE-2019-11717)

* Mozilla: Same-origin policy treats all files in a directory as having the same-origin (CVE-2019-11730)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for vim is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Vim (Vi IMproved) is an updated and improved version of the vi editor.

Security Fix(es) :

* vim/neovim: ':source!' command allows arbitrary command execution via modelines (CVE-2019-12735)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for firefox is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.8.0 ESR.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 68 and Firefox ESR 60.8 (CVE-2019-11709)

* Mozilla: Sandbox escape via installation of malicious language pack (CVE-2019-9811)

* Mozilla: Script injection within domain through inner window reuse (CVE-2019-11711)

* Mozilla: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects (CVE-2019-11712)

* Mozilla: Use-after-free with HTTP/2 cached stream (CVE-2019-11713)

* Mozilla: HTML parsing error can contribute to content XSS (CVE-2019-11715)

* Mozilla: Caret character improperly escaped in origins (CVE-2019-11717)

* Mozilla: Same-origin policy treats all files in a directory as having the same-origin (CVE-2019-11730)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for firefox is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.8.0 ESR.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 68 and Firefox ESR 60.8 (CVE-2019-11709)

* Mozilla: Sandbox escape via installation of malicious language pack (CVE-2019-9811)

* Mozilla: Script injection within domain through inner window reuse (CVE-2019-11711)

* Mozilla: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects (CVE-2019-11712)

* Mozilla: Use-after-free with HTTP/2 cached stream (CVE-2019-11713)

* Mozilla: HTML parsing error can contribute to content XSS (CVE-2019-11715)

* Mozilla: Caret character improperly escaped in origins (CVE-2019-11717)

* Mozilla: Same-origin policy treats all files in a directory as having the same-origin (CVE-2019-11730)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for dbus is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

D-Bus is a system for sending messages between applications. It is used both for the system-wide message bus service, and as a per-user-login-session messaging facility.

Security Fix(es) :

* dbus: DBusServer DBUS_COOKIE_SHA1 authentication bypass (CVE-2019-12749)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for libssh2 is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libssh2 packages provide a library that implements the SSH2 protocol.

Security Fix(es) :

* libssh2: Integer overflow in transport read resulting in out of bounds write (CVE-2019-3855)

* libssh2: Integer overflow in keyboard interactive handling resulting in out of bounds write (CVE-2019-3856)

* libssh2: Integer overflow in SSH packet processing channel resulting in out of bounds write (CVE-2019-3857)

* libssh2: Integer overflow in user authenticate keyboard interactive allows out-of-bounds writes (CVE-2019-3863)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for qemu-kvm is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es) :

* QEMU: Slirp: information leakage in tcp_emu() due to uninitialized stack variables (CVE-2019-9824)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.7.2.

Security Fix(es) :

* Mozilla: Type confusion in Array.pop (CVE-2019-11707)

* thunderbird: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c (CVE-2019-11705)

* Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)

* thunderbird: Heap buffer over read in icalparser.c parser_get_next_char (CVE-2019-11703)

* thunderbird: Heap buffer overflow in icalmemory_strdup_and_dequote function in icalvalue.c (CVE-2019-11704)

* thunderbird: Type confusion in icaltimezone_get_vtimezone_properties function in icalproperty.c (CVE-2019-11706)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for thunderbird is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.7.2.

Security Fix(es) :

* Mozilla: Type confusion in Array.pop (CVE-2019-11707)

* thunderbird: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c (CVE-2019-11705)

* Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)

* thunderbird: Heap buffer over read in icalparser.c parser_get_next_char (CVE-2019-11703)

* thunderbird: Heap buffer overflow in icalmemory_strdup_and_dequote function in icalvalue.c (CVE-2019-11704)

* thunderbird: Type confusion in icaltimezone_get_vtimezone_properties function in icalproperty.c (CVE-2019-11706)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for vim is now available for Red Hat Enterprise Linux 7 and Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Vim (Vi IMproved) is an updated and improved version of the vi editor.

Security Fix(es) :

* vim/neovim: ':source!' command allows arbitrary command execution via modelines (CVE-2019-12735)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for firefox is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.7.2 ESR.

Security Fix(es) :

* Mozilla: Type confusion in Array.pop (CVE-2019-11707)

* Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for firefox is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Firefox is an open source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.7.2 ESR.

Security Fix(es) :

* Mozilla: Type confusion in Array.pop (CVE-2019-11707)

* Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for python is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es) :

* python: regression of CVE-2019-9636 due to functional fix to allow port numbers in netloc (CVE-2019-10160)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for libvirt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems.
In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es) :

* libvirt: arbitrary file read/exec via virDomainSaveImageGetXMLDesc API (CVE-2019-10161)

* libvirt: virDomainManagedSaveDefineXML API exposed to readonly clients (CVE-2019-10166)

* libvirt: arbitrary command execution via virConnectGetDomainCapabilities API (CVE-2019-10167)

* libvirt: arbitrary command execution via virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU APIs (CVE-2019-10168)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* Live migration fail with unsafe error when GPFS is used as shared filesystem (BZ#1715867)

An update for libvirt is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems.
In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es) :

* libvirt: arbitrary file read/exec via virDomainSaveImageGetXMLDesc API (CVE-2019-10161)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for python is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

Security Fix(es) :

* python: Information Disclosure due to urlsplit improper NFKC normalization (CVE-2019-9636)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for bind is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

Security Fix(es) :

* bind: Limiting simultaneous TCP clients is ineffective (CVE-2018-5743)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for kernel is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment (SACK) segments. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS).
(CVE-2019-11477)

* kernel: Double free in lib/idr.c (CVE-2019-3896)

* Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478)

* Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* MDS mitigations not enabled on Intel Skylake CPUs (BZ#1710081)

* RHEL6 kernel does not disable SMT with mds=full,nosmt (BZ#1710121)

* [RHEL6] md_clear flag missing from /proc/cpuinfo (BZ#1710517)

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

* An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment (SACK) segments. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented. Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service (DoS).
(CVE-2019-11477)

* Kernel: tcp: excessive resource consumption while processing SACK blocks allows remote denial of service (CVE-2019-11478)

* Kernel: tcp: excessive resource consumption for TCP connections with low MSS allows remote denial of service (CVE-2019-11479)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

An update for thunderbird is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.7.0.

Security Fix(es) :

* Mozilla: Memory safety bugs fixed in Firefox 67 and Firefox ESR 60.7 (CVE-2019-9800)

* Mozilla: Cross-origin theft of images with createImageBitmap (CVE-2019-9797)

* Mozilla: Stealing of cross-domain images using canvas (CVE-2019-9817)

* Mozilla: Compartment mismatch with fetch API (CVE-2019-9819)

* Mozilla: Use-after-free of ChromeEventHandler by DocShell (CVE-2019-9820)

* Mozilla: Use-after-free in XMLHttpRequest (CVE-2019-11691)

* Mozilla: Use-after-free removing listeners in the event listener manager (CVE-2019-11692)

* Mozilla: Buffer overflow in WebGL bufferdata on Linux (CVE-2019-11693)

* mozilla: Cross-origin theft of images with ImageBitmapRenderingContext (CVE-2018-18511)

* chromium-browser: Out of bounds read in Skia (CVE-2019-5798)

* Mozilla: Theft of user history data through drag and drop of hyperlinks to and from bookmarks (CVE-2019-11698)

* libpng: use-after-free in png_image_free in png.c (CVE-2019-7317)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

ID	Name	Severity
128345	CentOS 7 : dhcp (CESA-2019:2060)	high
128344	CentOS 7 : bind (CESA-2019:2057)	medium
128343	CentOS 7 : libtiff (CESA-2019:2053)	high
128342	CentOS 7 : libjpeg-turbo (CESA-2019:2052)	high
128341	CentOS 7 : compat-libtiff3 (CESA-2019:2051)	medium
128340	CentOS 7 : libmspack (CESA-2019:2049)	medium
128339	CentOS 7 : exempi (CESA-2019:2048)	high
128338	CentOS 7 : libcgroup (CESA-2019:2047)	high
128337	CentOS 7 : polkit (CESA-2019:2046)	high
128336	CentOS 7 : fence-agents (CESA-2019:2037)	medium
128335	CentOS 7 : python-requests (CESA-2019:2035)	high
128334	CentOS 7 : patch (CESA-2019:2033)	high
128333	CentOS 7 : python (CESA-2019:2030)	critical
128332	CentOS 7 : ruby (CESA-2019:2028)	critical
128331	CentOS 7 : evince / okular / poppler (CESA-2019:2022)	critical
128330	CentOS 7 : zsh (CESA-2019:2017)	critical
127919	CentOS 6 : kernel (CESA-2019:2473)	high
127918	CentOS 6 : openssl (CESA-2019:2471)	medium
127474	CentOS 7 : httpd (CESA-2019:1898)	critical
127473	CentOS 7 : 389-ds-base (CESA-2019:1896)	high
127472	CentOS 7 : libssh2 (CESA-2019:1884)	critical
127471	CentOS 7 : qemu-kvm (CESA-2019:1883)	high
127470	CentOS 7 : curl (CESA-2019:1880)	critical
127469	CentOS 7 : kernel (CESA-2019:1873)	high
126993	CentOS 6 : java-1.7.0-openjdk (CESA-2019:1840)	medium
126992	CentOS 7 : java-1.7.0-openjdk (CESA-2019:1839)	medium
126991	CentOS 7 : java-1.8.0-openjdk (CESA-2019:1815)	medium
126990	CentOS 6 : java-1.8.0-openjdk (CESA-2019:1811)	medium
126989	CentOS 7 : java-11-openjdk (CESA-2019:1810)	medium
126792	CentOS 6 : thunderbird (CESA-2019:1777)	critical
126791	CentOS 7 : thunderbird (CESA-2019:1775)	critical
126790	CentOS 6 : vim (CESA-2019:1774)	high
126651	CentOS 6 : firefox (CESA-2019:1765)	critical
126650	CentOS 7 : firefox (CESA-2019:1763)	critical
126649	CentOS 6 : dbus (CESA-2019:1726)	high
126480	CentOS 6 : libssh2 (CESA-2019:1652)	high
126479	CentOS 6 : qemu-kvm (CESA-2019:1650)	medium
126389	CentOS 7 : thunderbird (CESA-2019:1626)	critical
126388	CentOS 6 : thunderbird (CESA-2019:1624)	critical
126387	CentOS 7 : vim (CESA-2019:1619)	high
126386	CentOS 6 : firefox (CESA-2019:1604)	critical
126385	CentOS 7 : firefox (CESA-2019:1603)	critical
126219	CentOS 7 : python (CESA-2019:1587)	critical
126076	CentOS 7 : libvirt (CESA-2019:1579)	high
126075	CentOS 6 : libvirt (CESA-2019:1578)	high
126074	CentOS 6 : python (CESA-2019:1467)	critical
126008	CentOS 6 : bind (CESA-2019:1492)	high
126007	CentOS 6 : kernel (CESA-2019:1488) (SACK Panic) (SACK Slowness)	high
126006	CentOS 7 : kernel (CESA-2019:1481) (SACK Panic) (SACK Slowness)	high
125803	CentOS 6 : thunderbird (CESA-2019:1310)	critical

Detections

Analytics

CentOS Local Security Checks Family for Nessus

high

medium

high

high

medium

medium

high

high

high

medium

high

high

critical

critical

critical

critical

high

medium

critical

high

critical

high

critical

high

medium

medium

medium

medium

medium

critical

critical

high

critical

critical

high

high

medium

critical

critical

high

critical

critical

critical

high

high

critical

high

high

high

critical