101535

RHSA-2018:0805

RHSA-2018:1879

https://sourceware.org/bugzilla/show_bug.cgi?id=22332

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=a159b53fa059947cc2548e3b0d5bdcf7b9630ba8

The remote NewStart CGSL host, running version MAIN 4.05, has glibc packages installed that are affected by multiple vulnerabilities:

  - The GNU C Library (aka glibc or libc6) before 2.27     contains an off-by-one error leading to a heap-based     buffer overflow in the glob function in glob.c, related     to the processing of home directories using the ~     operator followed by a long string. (CVE-2017-15670)

  - The glob function in glob.c in the GNU C Library (aka     glibc or libc6) before 2.27 contains a buffer overflow     during unescaping of user names with the ~ operator.
    (CVE-2017-15804)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has glibc packages installed that are affected by multiple vulnerabilities:

  - The GNU C Library (aka glibc or libc6) before 2.27     contains an off-by-one error leading to a heap-based     buffer overflow in the glob function in glob.c, related     to the processing of home directories using the ~     operator followed by a long string. (CVE-2017-15670)

  - The DNS stub resolver in the GNU C Library (aka glibc or     libc6) before version 2.26, when EDNS support is     enabled, will solicit large UDP responses from name     servers, potentially simplifying off-path DNS spoofing     attacks due to IP fragmentation. (CVE-2017-12132)

  - The glob function in glob.c in the GNU C Library (aka     glibc or libc6) before 2.27 contains a buffer overflow     during unescaping of user names with the ~ operator.
    (CVE-2017-15804)

  - res_query in libresolv in glibc before 2.25 allows     remote attackers to cause a denial of service (NULL     pointer dereference and process crash). (CVE-2015-5180)

  - The nss_dns implementation of getnetbyname in GNU C     Library (aka glibc) before 2.21, when the DNS backend in     the Name Service Switch configuration is enabled, allows     remote attackers to cause a denial of service (infinite     loop) by sending a positive answer while a network name     is being process. (CVE-2014-9402)

  - In glibc 2.26 and earlier there is confusion in the     usage of getcwd() by realpath() which can be used to     write before the destination buffer leading to a buffer     underflow and potential code execution.
    (CVE-2018-1000001)

  - Stack-based buffer overflow in the getaddrinfo function     in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka     glibc or libc6) allows remote attackers to cause a     denial of service (crash) via vectors involving hostent     conversion. NOTE: this vulnerability exists because of     an incomplete fix for CVE-2013-4458. (CVE-2016-3706)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the glibc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - stdlib/canonicalize.c in the GNU C Library (aka glibc     or libc6) 2.27 and earlier, when processing very long     pathname arguments to the realpath function, could     encounter an integer overflow on 32-bit architectures,     leading to a stack-based buffer overflow and,     potentially, arbitrary code execution.(CVE-2018-11236)

  - An integer overflow vulnerability was found in     hcreate() and hcreate_r() functions which could result     in an out-of-bounds memory access. This could lead to     application crash or, potentially, arbitrary code     execution.(CVE-2015-8778)

  - A stack-based buffer overflow was found in the way the     libresolv library performed dual A/AAAA DNS queries. A     remote attacker could create a specially crafted DNS     response which could cause libresolv to crash or,     potentially, execute code with the permissions of the     user running the library. Note: this issue is only     exposed when libresolv is called from the nss_dns NSS     service module.(CVE-2015-7547)

  - A flaw was found in the regular expression matching     routines that process multibyte character input. If an     application utilized the glibc regular expression     matching mechanism, an attacker could provide     specially-crafted input that, when processed, would     cause the application to crash.(CVE-2013-0242)

  - A flaw was found in the way memory was being allocated     on the stack for user space binaries. If heap (or     different memory region) and stack memory regions were     adjacent to each other, an attacker could use this flaw     to jump over the stack guard gap, cause controlled     memory corruption on process stack or the adjacent     memory region, and thus increase their privileges on     the system. This is glibc-side mitigation which blocks     processing of LD_LIBRARY_PATH for programs running in     secure-execution mode and reduces the number of     allocations performed by the processing of LD_AUDIT,     LD_PRELOAD, and LD_HWCAP_MASK, making successful     exploitation of this issue more     difficult.(CVE-2017-1000366)

  - The DNS stub resolver in the GNU C Library (aka glibc     or libc6) before version 2.26, when EDNS support is     enabled, will solicit large UDP responses from name     servers, potentially simplifying off-path DNS spoofing     attacks due to IP fragmentation.(CVE-2017-12132)

  - It was found that the files back end of Name Service     Switch (NSS) did not isolate iteration over an entire     database from key-based look-up API calls. An     application performing look-ups on a database while     iterating over it could enter an infinite loop, leading     to a denial of service.(CVE-2014-8121)

  - Stack-based buffer overflow in the getaddrinfo function     in sysdeps/posix/getaddrinfo.c in the GNU C Library     (aka glibc or libc6) allows remote attackers to cause a     denial of service (crash) via vectors involving hostent     conversion. NOTE: this vulnerability exists because of     an incomplete fix for CVE-2013-4458.(CVE-2016-3706)

  - In glibc 2.26 and earlier there is confusion in the     usage of getcwd() by realpath() which can be used to     write before the destination buffer leading to a buffer     underflow and potential code     execution.(CVE-2018-1000001)

  - Stack-based buffer overflow in string/strcoll_l.c in     the GNU C Library (aka glibc or libc6) 2.17 and earlier     allows context-dependent attackers to cause a denial of     service (crash) or possibly execute arbitrary code via     a long string that triggers a malloc failure and use of     the alloca function.(CVE-2012-4424)

  - It was found that the dynamic loader did not sanitize     the LD_POINTER_GUARD environment variable. An attacker     could use this flaw to bypass the pointer guarding     protection on set-user-ID or set-group-ID programs to     execute arbitrary code with the permissions of the user     running the application.(CVE-2015-8777)

  - The glob function in glob.c in the GNU C Library (aka     glibc or libc6) before 2.27 contains a buffer overflow     during unescaping of user names with the ~     operator.(CVE-2017-15804)

  - res_query in libresolv in glibc before 2.25 allows     remote attackers to cause a denial of service (NULL     pointer dereference and process crash).(CVE-2015-5180)

  - pt_chown in GNU C Library (aka glibc or libc6) before     2.18 does not properly check permissions for tty files,     which allows local users to change the permission on     the files and obtain access to arbitrary     pseudo-terminals by leveraging a FUSE file     system.(CVE-2013-2207)

  - A stack overflow flaw was found in glibc's swscanf()     function. An attacker able to make an application call     the swscanf() function could use this flaw to crash     that application or, potentially, execute arbitrary     code with the permissions of the user running the     application.(CVE-2015-1473)

  - It was found that getaddrinfo() did not limit the     amount of stack memory used during name resolution. An     attacker able to make an application resolve an     attacker-controlled hostname or IP address could     possibly cause the application to exhaust all stack     memory and crash.(CVE-2013-4458)

  - A heap-based buffer overflow was found in glibc's
    __nss_hostname_digits_dots() function, which is used by     the gethostbyname() and gethostbyname2() glibc function     calls. A remote attacker able to make an application     call either of these functions could use this flaw to     execute arbitrary code with the permissions of the user     running the application.(CVE-2015-0235)

  - Multiple integer overflow flaws, leading to heap-based     buffer overflows, were found in glibc's memory     allocator functions (pvalloc, valloc, and memalign). If     an application used such a function, it could cause the     application to crash or, potentially, execute arbitrary     code with the privileges of the user running the     application.(CVE-2013-4332)

  - An integer overflow in the implementation of the     posix_memalign in memalign functions in the GNU C     Library (aka glibc or libc6) 2.26 and earlier could     cause these functions to return a pointer to a heap     area that is too small, potentially leading to heap     corruption.(CVE-2018-6485)

  - A stack based buffer overflow vulnerability was found     in the catopen() function. An excessively long string     passed to the function could cause it to crash or,     potentially, execute arbitrary code.(CVE-2015-8779)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the glibc package has been released.

This update for glibc fixes the following security issues :

CVE-2017-15670: Prevent off-by-one error that lead to a heap-based buffer overflow in the glob function, related to the processing of home directories using the ~ operator followed by a long string (bsc#1064583)

CVE-2017-15804: The glob function contained a buffer overflow during unescaping of user names with the ~ operator (bsc#1064580)

CVE-2015-5180: res_query in libresolv allowed remote attackers to cause a denial of service (NULL pointer dereference and process crash) (bsc#941234).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of [systemd,curl,glibc,freetype2] packages for PhotonOS has been released.

This update for glibc fixes the following issues: Security issues fixed :

  - CVE-2017-15804: Fix buffer overflow during unescaping of     user names in the glob function in glob.c (bsc#1064580).

  - CVE-2017-15670: Fix buffer overflow in glob with     GLOB_TILDE (bsc#1064583).

  - CVE-2017-15671: Fix memory leak in glob with GLOB_TILDE     (bsc#1064569).

  - CVE-2018-11236: Fix 32bit arch integer overflow in     stdlib/canonicalize.c when processing very long pathname     arguments (bsc#1094161).

  - CVE-2017-12132: Reduce advertised EDNS0 buffer size to     guard against fragmentation attacks (bsc#1051791).

  - CVE-2018-1000001: Avoid underflow of malloced area     (bsc#1074293).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for glibc fixes the following issues: Security issues fixed :

  - CVE-2017-15804: Fix buffer overflow during unescaping of     user names in the glob function in glob.c (bsc#1064580).

  - CVE-2017-15670: Fix buffer overflow in glob with     GLOB_TILDE (bsc#1064583).

  - CVE-2017-15671: Fix memory leak in glob with GLOB_TILDE     (bsc#1064569).

  - CVE-2018-11236: Fix 32bit arch integer overflow in     stdlib/canonicalize.c when processing very long pathname     arguments (bsc#1094161).

  - CVE-2017-12132: Reduce advertised EDNS0 buffer size to     guard against fragmentation attacks (bsc#1051791).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.(CVE-2018-11236)

The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string. (CVE-2017-15670)

The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804)

An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.(CVE-2017-18269)

Security Fix(es) :

  - glibc: Buffer overflow in glob with GLOB_TILDE     (CVE-2017-15670)

  - glibc: Buffer overflow during unescaping of user names     with the ~ operator (CVE-2017-15804)

The remote OracleVM system is missing necessary patches to address critical security updates :

  - backport rh patch 1047983 from OL7, Orabug 25407655

  - CVE-2017-15670: glob: Fix one-byte overflow with     GLOB_TILDE (#1504810)

  - CVE-2017-15804: glob: Fix buffer overflow in GLOB_TILDE     unescaping (#1504810)

  - Avoid large allocas in the dynamic linker (#1452717)

  - Fix thread cancellation issues for setmntent and others     (#1437147).

From Red Hat Security Advisory 2018:1879 :

An update for glibc 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 glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es) :

* glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)

* glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804)

For more details about the security issue(s), including the impact, a CVSS score, 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 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

An update for glibc 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 glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es) :

* glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)

* glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804)

For more details about the security issue(s), including the impact, a CVSS score, 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 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

Fragmentation attacks possible when EDNS0 is enabled

The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.(CVE-2017-12132)

Buffer overflow in glob with GLOB_TILDE

The GNU C Library (aka glibc or libc6) before 2.27 contains an off-by-one error leading to a heap-based buffer overflow in the glob function in glob.c, related to the processing of home directories using the ~ operator followed by a long string.(CVE-2017-15670)

Denial of service in getnetbyname function

The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process.(CVE-2014-9402)

DNS resolver NULL pointer dereference with crafted record type

res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).(CVE-2015-5180)

realpath() buffer underflow when getcwd() returns relative path allows privilege escalation

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.(CVE-2018-1000001)

Buffer overflow during unescaping of user names with the ~ operator

The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27 contains a buffer overflow during unescaping of user names with the ~ operator.(CVE-2017-15804)

Security Fix(es) :

  - glibc: realpath() buffer underflow when getcwd() returns     relative path allows privilege escalation     (CVE-2018-1000001)

  - glibc: Buffer overflow in glob with GLOB_TILDE     (CVE-2017-15670)

  - glibc: Buffer overflow during unescaping of user names     with the ~ operator (CVE-2017-15804)

  - glibc: denial of service in getnetbyname function     (CVE-2014-9402)

  - glibc: DNS resolver NULL pointer dereference with     crafted record type (CVE-2015-5180)

  - glibc: Fragmentation attacks possible when EDNS0 is     enabled (CVE-2017-12132)

Additional Changes :

An update for glibc 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 glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es) :

* glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001)

* glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)

* glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804)

* glibc: denial of service in getnetbyname function (CVE-2014-9402)

* glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180)

* glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132)

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

Red Hat would like to thank halfdog for reporting CVE-2018-1000001.
The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

From Red Hat Security Advisory 2018:0805 :

An update for glibc 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 glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es) :

* glibc: realpath() buffer underflow when getcwd() returns relative path allows privilege escalation (CVE-2018-1000001)

* glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)

* glibc: Buffer overflow during unescaping of user names with the ~ operator (CVE-2017-15804)

* glibc: denial of service in getnetbyname function (CVE-2014-9402)

* glibc: DNS resolver NULL pointer dereference with crafted record type (CVE-2015-5180)

* glibc: Fragmentation attacks possible when EDNS0 is enabled (CVE-2017-12132)

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

Red Hat would like to thank halfdog for reporting CVE-2018-1000001.
The CVE-2015-5180 issue was discovered by Florian Weimer (Red Hat Product Security).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

The remote host is affected by the vulnerability described in GLSA-201804-02 (glibc: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in glibc. Please review       the CVE identifiers referenced below for details.
  Impact :

    An attacker could possibly execute arbitrary code, escalate privileges,       cause a Denial of Service condition, or have other unspecified impacts.
  Workaround :

    There is no known workaround at this time.

This update addresses two security vulnerabilities :

  - CVE-2017-15670, CVE-2017-15671, CVE-2017-15804: Various     vulnerabilities could lead to memory corruption in the     `glob` and `glob64` function. (RHBZ#1505298,     RHBZ##1504807)

  - CVE-2017-16997: Check for empty tokens before dynamic     string token expansion in the dynamic linker, so that     pre-existing privileged programs with `$ORIGIN`     rpaths/runpaths do not cause the dynamic linker to     search the current directory, potentially leading to     privilege escalation. (RHBZ#1526866).

  - CVE-2018-1000001: `getcwd` would sometimes return a     non-absolute path, confusing the `realpath` function,     leading to privilege escalation in conjunction with user     namespaces. (RHBZ#1533837) 

In addition, this update replaces the dynamic linker trampoline on x86-64 with a version which uses the `XSAVE` instruction if it is available. This improves compatibility with future hardware and compilers which do not follow the x86-64 ABI. This update also adjusts the thread stack size accounting to provide additional stack space compared to previous glibc versions (to avoid introducing RHBZ#1527887).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that the GNU C library did not properly handle all of the possible return values from the kernel getcwd(2) syscall. A local attacker could potentially exploit this to execute arbitrary code in setuid programs and gain administrative privileges.
(CVE-2018-1000001)

A memory leak was discovered in the _dl_init_paths() function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_HWCAP_MASK environment variable, in combination with CVE-2017-1000409 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges. (CVE-2017-1000408)

A heap-based buffer overflow was discovered in the _dl_init_paths() function in the GNU C library dynamic loader. A local attacker could potentially exploit this with a specially crafted value in the LD_LIBRARY_PATH environment variable, in combination with CVE-2017-1000408 and another vulnerability on a system with hardlink protections disabled, in order to gain administrative privileges.
(CVE-2017-1000409)

An off-by-one error leading to a heap-based buffer overflow was discovered in the GNU C library glob() implementation. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code via a maliciously crafted pattern. (CVE-2017-15670)

A heap-based buffer overflow was discovered during unescaping of user names with the ~ operator in the GNU C library glob() implementation.
An attacker could potentially exploit this to cause a denial of service or execute arbitrary code via a maliciously crafted pattern.
(CVE-2017-15804)

It was discovered that the GNU C library dynamic loader mishandles RPATH and RUNPATH containing $ORIGIN for privileged (setuid or AT_SECURE) programs. A local attacker could potentially exploit this by providing a specially crafted library in the current working directory in order to gain administrative privileges. (CVE-2017-16997)

It was discovered that the GNU C library malloc() implementation could return a memory block that is too small if an attempt is made to allocate an object whose size is close to SIZE_MAX, resulting in a heap-based overflow. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 17.10. (CVE-2017-17426).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for glibc fixes the following issues :

  - A privilege escalation bug in the realpath() function     has been fixed. [CVE-2018-1000001, bsc#1074293]

  - A memory leak and a buffer overflow in the dynamic ELF     loader has been fixed. [CVE-2017-1000408,     CVE-2017-1000409, bsc#1071319]

  - An issue in the code handling RPATHs was fixed that     could have been exploited by an attacker to execute code     loaded from arbitrary libraries. [CVE-2017-16997,     bsc#1073231]

  - A potential crash caused by a use-after-free bug in     pthread_create() has been fixed. [bsc#1053188]

  - A bug that prevented users to build shared objects which     use the optimized libmvec.so API has been fixed.
    [bsc#1070905]

  - A memory leak in the glob() function has been fixed.
    [CVE-2017-15670, CVE-2017-15671, CVE-2017-15804,     bsc#1064569, bsc#1064580, bsc#1064583]

  - A bug that would lose the syscall error code value in     case of crashes has been fixed. [bsc#1063675]

This update was imported from the SUSE:SLE-12-SP2:Update update project.

This update for glibc fixes the following issues :

  - A privilege escalation bug in the realpath() function     has been fixed. [CVE-2018-1000001, bsc#1074293]

  - A memory leak and a buffer overflow in the dynamic ELF     loader has been fixed. [CVE-2017-1000408,     CVE-2017-1000409, bsc#1071319]

  - An issue in the code handling RPATHs was fixed that     could have been exploited by an attacker to execute code     loaded from arbitrary libraries. [CVE-2017-16997,     bsc#1073231]

  - A potential crash caused by a use-after-free bug in     pthread_create() has been fixed. [bsc#1053188]

  - A bug that prevented users to build shared objects which     use the optimized libmvec.so API has been fixed.
    [bsc#1070905]

  - A memory leak in the glob() function has been fixed.
    [CVE-2017-15670, CVE-2017-15671, CVE-2017-15804,     bsc#1064569, bsc#1064580, bsc#1064583]

  - A bug that would lose the syscall error code value in     case of crashes has been fixed. [bsc#1063675]

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update fixes minor security bugs (CVE-2017-17426, CVE-2017-15804), contains single-threaded optimizations for `malloc`, and increases compatibility with IBM POWER 9 hardware.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the glibc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The GNU C Library (aka glibc or libc6) before 2.27     contains an off-by-one error leading to a heap-based     buffer overflow in the glob function in glob.c, related     to the processing of home directories using the ~     operator followed by a long string.(CVE-2017-15670)

  - The glob function in glob.c in the GNU C Library (aka     glibc or libc6) before 2.27 contains a buffer overflow     during unescaping of user names with the ~     operator.(CVE-2017-15804)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
127406	NewStart CGSL MAIN 4.05 : glibc Multiple Vulnerabilities (NS-SA-2019-0142)	Nessus	NewStart CGSL Local Security Checks	high
127183	NewStart CGSL CORE 5.04 / MAIN 5.04 : glibc Multiple Vulnerabilities (NS-SA-2019-0024)	Nessus	NewStart CGSL Local Security Checks	high
125004	EulerOS Virtualization 3.0.1.0 : glibc (EulerOS-SA-2019-1551)	Nessus	Huawei Local Security Checks	critical
121750	Photon OS 1.0: Glibc PHSA-2017-0041	Nessus	PhotonOS Local Security Checks	high
117804	SUSE SLES11 Security Update : glibc (SUSE-SU-2018:2883-1)	Nessus	SuSE Local Security Checks	high
111890	Photon OS 1.0: Curl / Freetype2 / Glibc / Systemd PHSA-2017-0041 (deprecated)	Nessus	PhotonOS Local Security Checks	high
111547	SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2187-1)	Nessus	SuSE Local Security Checks	high
111546	SUSE SLES12 Security Update : glibc (SUSE-SU-2018:2185-1)	Nessus	SuSE Local Security Checks	high
111335	Amazon Linux 2 : glibc (ALAS-2018-1048)	Nessus	Amazon Linux Local Security Checks	high
110886	Scientific Linux Security Update : glibc on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
110884	OracleVM 3.3 / 3.4 : glibc (OVMSA-2018-0235)	Nessus	OracleVM Local Security Checks	high
110704	Oracle Linux 6 : glibc (ELSA-2018-1879)	Nessus	Oracle Linux Local Security Checks	high
110648	CentOS 6 : glibc (CESA-2018:1879)	Nessus	CentOS Local Security Checks	high
110603	RHEL 6 : glibc (RHSA-2018:1879)	Nessus	Red Hat Local Security Checks	high
109699	Amazon Linux AMI : glibc (ALAS-2018-1017)	Nessus	Amazon Linux Local Security Checks	high
109447	Scientific Linux Security Update : glibc on SL7.x x86_64	Nessus	Scientific Linux Local Security Checks	high
109371	CentOS 7 : glibc (CESA-2018:0805)	Nessus	CentOS Local Security Checks	high
109105	Oracle Linux 7 : glibc (ELSA-2018-0805)	Nessus	Oracle Linux Local Security Checks	high
108985	RHEL 7 : glibc (RHSA-2018:0805)	Nessus	Red Hat Local Security Checks	high
108822	GLSA-201804-02 : glibc: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
106281	Fedora 26 : glibc (2018-8e27ad96ed)	Nessus	Fedora Local Security Checks	high
106134	Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : eglibc, glibc vulnerabilities (USN-3534-1)	Nessus	Ubuntu Local Security Checks	high
106059	openSUSE Security Update : glibc (openSUSE-2018-30)	Nessus	SuSE Local Security Checks	high
106044	SUSE SLED12 / SLES12 Security Update : glibc (SUSE-SU-2018:0074-1)	Nessus	SuSE Local Security Checks	high
106014	Fedora 27 : glibc (2017-fb5e227432)	Nessus	Fedora Local Security Checks	high
104293	EulerOS 2.0 SP2 : glibc (EulerOS-SA-2017-1268)	Nessus	Huawei Local Security Checks	high
104292	EulerOS 2.0 SP1 : glibc (EulerOS-SA-2017-1267)	Nessus	Huawei Local Security Checks	high

CVE-2017-15804

Description

References

Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerable Software

Configuration 1

Tenable Plugins