The NFS implementation in Linux kernel before 2.6.31-rc6 calls certain functions without properly initializing certain data, which allows local users to cause a denial of service (NULL pointer dereference and O_DIRECT oops), as demonstrated using diotest4 from LTP.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2012-251:02 advisory.

    The kernel package contains the Linux kernel (vmlinuz), the core of any Linux operating system. The kernel     handles the basic functions of the operating system: memory allocation, process allocation, device input     and output, etc.
    Security issues fixes with this release:
    CVE-2011-1020     The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the     /proc directory tree of a process after this process performs an exec of a setuid program, which allows     local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write     system calls.
    CVE-2011-4077     Buffer overflow in the xfs_readlink function in fs/xfs/xfs_vnodeops.c in XFS in the Linux kernel 2.6, when     CONFIG_XFS_DEBUG is disabled, allows local users to cause a denial of service (memory corruption and     crash) and possibly execute arbitrary code via an XFS image containing a symbolic link with a long     pathname.
    CVE-2011-4132     The cleanup_journal_tail function in the Journaling Block Device (JBD) functionality in the Linux kernel     2.6 allows local users to cause a denial of service (assertion error and kernel oops) via an ext3 or ext4     image with an invalid log first block value.
    CVE-2011-4325     The NFS implementation in Linux kernel before 2.6.31-rc6 calls certain functions without properly     initializing certain data, which allows local users to cause a denial of service (NULL pointer dereference     and O_DIRECT oops), as demonstrated using diotest4 from LTP.
    CVE-2011-4330     Stack-based buffer overflow in the hfs_mac2asc function in fs/hfs/trans.c in the Linux kernel 2.6 allows     local users to cause a denial of service (crash) and possibly execute arbitrary code via an HFS image with     a crafted len field.
    CVE-2011-3637     CVE-2011-4324     CVE-2011-4348     CVE-2011-3638     CVE-2011-4086     CVE-2011-4127     CVE-2012-0028     CVE-2012-0207     No description available at the time of writing, please refer to the CVE links below.
    Fixed bugs:
    - If an SCSI scan was initiated on a host in recovery mode, the scan failed without any error output; this     has been fixed and the SCSI layer now waits for the host to recover before starting scan operations.
    - Because SG_IO ioctls were not previously implemented correctly, sending an SG_IO ioctl request to a     virtio-blk disk caused the sending thread to enter an uninterruptible sleep state. SG_IO ioctls are now     rejected by the virtio-blk driver: the ioctl system call will simply return an ENOTTY (Inappropriate ioctl     for device) error and the thread will continue normally.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

The remote VMware ESX / ESXi host is missing a security-related patch.
It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several third-party libraries :

  - Apache Struts
  - glibc
  - GnuTLS
  - JRE
  - kernel
  - libxml2
  - OpenSSL
  - Perl
  - popt and rpm

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2012-0007 advisory.

    - Revert:  [block] add and use scsi_blk_cmd_ioctl (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
    - Revert:  [block] fail SCSI passthrough ioctls on partition devices (Paolo Bonzini) [752385 752386]     {CVE-2011-4127}
    - Revert:  [dm] do not forward ioctls from logical volumes to the underlying device (Paolo Bonzini)     [752385 752386] {CVE-2011-4127}
    - Revert:  [scsi] fix 32-on-64 block device ioctls (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
    - [scsi] fix 32-on-64 block device ioctls (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
    - [fs] xfs: Fix memory corruption in xfs_readlink (Carlos Maiolino) [749159 749160] {CVE-2011-4077}
    - [fs] nfs: remove BUG() from encode_share_access() (Jeff Layton) [755442 754901] {CVE-2011-4324}
    - [fs] hfs: add sanity check for file name length (Eric Sandeen) [755432 755433] {CVE-2011-4330}
    - [fs] jbd/jbd2: validate sb->s_first in journal_get_superblock (Eryu Guan) [753343 706810]     {CVE-2011-4132}
    - [fs] proc: fix oops on invalid /proc/<pid>/maps access (Johannes Weiner) [747851 747699] {CVE-2011-3637}
    - [fs] proc: close race with exec in mem_read() (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [mm] implement access_remote_vm (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [mm] factor out main logic of access_process_vm (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [mm] use mm_struct to resolve gate vma's in __get_user_pages (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [mm] make in_gate_area take mm_struct instead of a task_struct (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [mm] make get_gate_vma take mm_struct instead of task_struct (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [x86_64] mark assoc mm when running task in 32 bit compat mode (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [misc] sched: add ctx tag to mm running task in ia32 compat mode (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [fs] proc: require the target to be tracable (or yourself) (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [fs] proc: close race in /proc/*/environ (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [fs] proc: report errors in /proc/*/*map* sanely (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [fs] proc: shift down_read(mmap_sem) to the caller (Johannes Weiner) [692041 692042] {CVE-2011-1020}
    - [fs] detect exec transition phase with new mm but old creds (Johannes Weiner) [692041 692042]     {CVE-2011-1020}
    - [dm] do not forward ioctls from logical volumes to the underlying device (Paolo Bonzini) [752385 752386]     {CVE-2011-4127}
    - [block] fail SCSI passthrough ioctls on partition devices (Paolo Bonzini) [752385 752386]     {CVE-2011-4127}
    - [block] add and use scsi_blk_cmd_ioctl (Paolo Bonzini) [752385 752386] {CVE-2011-4127}
    - [fs] nfs: Fix an O_DIRECT Oops (Jeff Layton) [755457 754620] {CVE-2011-4325}
    - [net] sctp: Fix another race during accept/peeloff (Thomas Graf) [757146 714870] {CVE-2011-4348}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

a. vCenter and ESX update to JRE 1.6.0 Update 31

   The Oracle (Sun) JRE is updated to version 1.6.0_31, which    addresses multiple security issues. Oracle has documented the    CVE identifiers that are addressed by this update in the Oracle    Java SE Critical Patch Update Advisory of February 2012.

b. vCenter Update Manager update to JRE 1.5.0 Update 36

   The Oracle (Sun) JRE is updated to 1.5.0_36 to address multiple    security issues.  Oracle has documented the CVE identifiers that    are addressed in JRE 1.5.0_36 in the Oracle Java SE Critical    Patch Update Advisory for June 2012.

c. Update to ESX/ESXi userworld OpenSSL library

   The ESX/ESXi userworld OpenSSL library is updated from version    0.9.8p to version 0.9.8t to resolve multiple security issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-4180, CVE-2010-4252,    CVE-2011-0014, CVE-2011-4108, CVE-2011-4109, CVE-2011-4576,    CVE-2011-4577, CVE-2011-4619, and CVE-2012-0050 to these issues.

d. Update to ESX service console OpenSSL RPM

   The service console OpenSSL RPM is updated to version    0.9.8e-22.el5_8.3 to resolve a security issue.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2012-2110 to this issue.

e. Update to ESX service console kernel

   The ESX service console kernel is updated to resolve multiple    security issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2011-1833, CVE-2011-2484,    CVE-2011-2496, CVE-2011-3188, CVE-2011-3209, CVE-2011-3363,    CVE-2011-4110, CVE-2011-1020, CVE-2011-4132, CVE-2011-4324,    CVE-2011-4325, CVE-2012-0207, CVE-2011-2699, and CVE-2012-1583    to these issues.

f. Update to ESX service console Perl RPM

   The ESX service console Perl RPM is updated to    perl-5.8.8.32.1.8999.vmw to resolve multiple security issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2010-2761, CVE-2010-4410, and    CVE-2011-3597 to these issues.

g. Update to ESX service console libxml2 RPMs

   The ESX service console libmxl2 RPMs are updated to    libxml2-2.6.26-2.1.15.el5_8.2 and    libxml2-python-2.6.26-2.1.15.el5_8.2 to resolve a security    issue.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2012-0841 to this issue.

h. Update to ESX service console glibc RPM

   The ESX service console glibc RPM is updated to version    glibc-2.5-81.el5_8.1 to resolve multiple security issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)   has assigned the names CVE-2009-5029, CVE-2009-5064,    CVE-2010-0830, CVE-2011-1089, CVE-2011-4609, and CVE-2012-0864    to these issue.

i. Update to ESX service console GnuTLS RPM

   The ESX service console GnuTLS RPM is updated to version    1.4.1-7.el5_8.2 to resolve multiple security issues.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2011-4128, CVE-2012-1569, and    CVE-2012-1573 to these issues.

j. Update to ESX service console popt, rpm, rpm-libs,    and rpm-python RPMS

   The ESX service console popt, rpm, rpm-libs, and rpm-python RPMS    are updated to the following versions to resolve multiple    security issues :
      - popt-1.10.2.3-28.el5_8
      - rpm-4.4.2.3-28.el5_8
      - rpm-libs-4.4.2.3-28.el5_8
      - rpm-python-4.4.2.3-28.el5_8

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2012-0060, CVE-2012-0061, and    CVE-2012-0815 to these issues.

k. Vulnerability in third-party Apache Struts component

   The version of Apache Struts in vCenter Operations has been    updated to 2.3.4 which addresses an arbitrary file overwrite    vulnerability. This vulnerability allows an attacker to create    a denial of service by overwriting arbitrary files without    authentication. The attacker would need to be on the same network    as the system where vCOps is installed.

   The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the name CVE-2012-0393 to this issue.

   Note: Apache struts 2.3.4 addresses the following issues as well :
   CVE-2011-5057, CVE-2012-0391, CVE-2012-0392, CVE-2012-0394. It    was found that these do not affect vCOps.

   VMware would like to thank Alexander Minozhenko from ERPScan for    reporting this issue to us.

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

This update fixes the following security issues :

  - A buffer overflow flaw was found in the way the Linux     kernel's XFS file system implementation handled links     with overly long path names. A local, unprivileged user     could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially     crafted disk. (CVE-2011-4077, Important)

  - The fix for CVE-2011-2482 provided by a previous update     introduced a regression: on systems that do not have     Security-Enhanced Linux (SELinux) in Enforcing mode, a     socket lock race could occur between sctp_rcv() and     sctp_accept(). A remote attacker could use this flaw to     cause a denial of service. By default, SELinux runs in     Enforcing mode on Scientific Linux 5. (CVE-2011-4348,     Important)

  - The proc file system could allow a local, unprivileged     user to obtain sensitive information or possibly cause     integrity issues. (CVE-2011-1020, Moderate)

  - A missing validation flaw was found in the Linux     kernel's m_stop() implementation. A local, unprivileged     user could use this flaw to trigger a denial of service.
    (CVE-2011-3637, Moderate)

  - A flaw was found in the Linux kernel's Journaling Block     Device (JBD). A local attacker could use this flaw to     crash the system by mounting a specially crafted ext3 or     ext4 disk. (CVE-2011-4132, Moderate)

  - A flaw was found in the Linux kernel's     encode_share_access() implementation. A local,     unprivileged user could use this flaw to trigger a     denial of service by creating a regular file on an NFSv4     (Network File System version 4) file system via mknod().
    (CVE-2011-4324, Moderate)

  - A flaw was found in the Linux kernel's NFS     implementation. A local, unprivileged user could use     this flaw to cause a denial of service. (CVE-2011-4325,     Moderate)

  - A missing boundary check was found in the Linux kernel's     HFS file system implementation. A local attacker could     use this flaw to cause a denial of service or escalate     their privileges by mounting a specially crafted disk.
    (CVE-2011-4330, Moderate)

This update also fixes several bugs and adds one enhancement.

Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs and add the enhancement noted in the Technical Notes. The system must be rebooted for this update to take effect.

Updated kernel packages that fix multiple security issues, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

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

This update fixes the following security issues :

* A buffer overflow flaw was found in the way the Linux kernel's XFS file system implementation handled links with overly long path names.
A local, unprivileged user could use this flaw to cause a denial of service or escalate their privileges by mounting a specially crafted disk. (CVE-2011-4077, Important)

* The fix for CVE-2011-2482 provided by RHSA-2011:1212 introduced a regression: on systems that do not have Security-Enhanced Linux (SELinux) in Enforcing mode, a socket lock race could occur between sctp_rcv() and sctp_accept(). A remote attacker could use this flaw to cause a denial of service. By default, SELinux runs in Enforcing mode on Red Hat Enterprise Linux 5. (CVE-2011-4348, Important)

* The proc file system could allow a local, unprivileged user to obtain sensitive information or possibly cause integrity issues.
(CVE-2011-1020, Moderate)

* A missing validation flaw was found in the Linux kernel's m_stop() implementation. A local, unprivileged user could use this flaw to trigger a denial of service. (CVE-2011-3637, Moderate)

* A flaw was found in the Linux kernel's Journaling Block Device (JBD). A local attacker could use this flaw to crash the system by mounting a specially crafted ext3 or ext4 disk. (CVE-2011-4132, Moderate)

* A flaw was found in the Linux kernel's encode_share_access() implementation. A local, unprivileged user could use this flaw to trigger a denial of service by creating a regular file on an NFSv4 (Network File System version 4) file system via mknod().
(CVE-2011-4324, Moderate)

* A flaw was found in the Linux kernel's NFS implementation. A local, unprivileged user could use this flaw to cause a denial of service.
(CVE-2011-4325, Moderate)

* A missing boundary check was found in the Linux kernel's HFS file system implementation. A local attacker could use this flaw to cause a denial of service or escalate their privileges by mounting a specially crafted disk. (CVE-2011-4330, Moderate)

Red Hat would like to thank Kees Cook for reporting CVE-2011-1020, and Clement Lecigne for reporting CVE-2011-4330.

This update also fixes several bugs and adds one enhancement.
Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.

Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs and add the enhancement noted in the Technical Notes. The system must be rebooted for this update to take effect.

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0007 advisory.

  - kernel: no access restrictions of /proc/pid/* after setuid program exec (CVE-2011-1020)

  - kernel: proc: fix oops on invalid /proc/<pid>/maps access (CVE-2011-3637)

  - kernel: xfs: potential buffer overflow in xfs_readlink() (CVE-2011-4077)

  - kernel: jbd/jbd2: invalid value of first log block leads to oops (CVE-2011-4132)

  - kernel: nfsv4: mknod(2) DoS (CVE-2011-4324)

  - kernel: nfs: diotest4 from LTP crash client null pointer deref (CVE-2011-4325)

  - kernel: hfs: add sanity check for file name length (CVE-2011-4330)

  - kernel: incomplete fix for CVE-2011-2482 (CVE-2011-4348)

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

ID	Name	Product	Family	Type	Severity
284288	MiracleLinux 3 : kernel-2.6.18-274.6.AXS3 (AXSA:2012-251:02)	Nessus	Miracle Linux Local Security Checks	Local	high
89038	VMware ESX / ESXi Third-Party Libraries Multiple Vulnerabilities (VMSA-2012-0013) (remote check)	Nessus	Misc.	Remote	high
68427	Oracle Linux 5 : kernel (ELSA-2012-0007)	Nessus	Oracle Linux Local Security Checks	Local	medium
61747	VMSA-2012-0013 : VMware vSphere and vCOps updates to third-party libraries	Nessus	VMware ESX Local Security Checks	Local	critical
61215	Scientific Linux Security Update : kernel on SL5.x i386/x86_64 (20120110)	Nessus	Scientific Linux Local Security Checks	Local	high
57485	CentOS 5 : kernel (CESA-2012:0007)	Nessus	CentOS Local Security Checks	Local	medium
57481	RHEL 5 : kernel (RHSA-2012:0007)	Nessus	Red Hat Local Security Checks	Local	medium

Detections

Analytics

CVE-2011-4325

medium

Tenable Plugins

high

high

medium

critical

high

medium

medium