medium
4
CWE
476
Advisory Published
CVE Published
Updated

CVE-2012-5517: Null Pointer Dereference

First published: Sat Nov 10 2012(Updated: )

A NULL pointer dereference flaw has been found in the way a new node's hot-added memory is propagated to other nodes zonelists. An unprivileged local user can use this flaw to crash the system. Upstream fix: <a href="http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=08dff7b7d629807dbb1f398c68dd9cd58dd657a1">http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=08dff7b7d629807dbb1f398c68dd9cd58dd657a1</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Kernel<=3.5.7
Linux Kernel=3.0-rc1
Linux Kernel=3.0-rc2
Linux Kernel=3.0-rc3
Linux Kernel=3.0-rc4
Linux Kernel=3.0-rc5
Linux Kernel=3.0-rc6
Linux Kernel=3.0-rc7
Linux Kernel=3.0.1
Linux Kernel=3.0.2
Linux Kernel=3.0.3
Linux Kernel=3.0.4
Linux Kernel=3.0.5
Linux Kernel=3.0.6
Linux Kernel=3.0.7
Linux Kernel=3.0.8
Linux Kernel=3.0.9
Linux Kernel=3.0.10
Linux Kernel=3.0.11
Linux Kernel=3.0.12
Linux Kernel=3.0.13
Linux Kernel=3.0.14
Linux Kernel=3.0.15
Linux Kernel=3.0.16
Linux Kernel=3.0.17
Linux Kernel=3.0.18
Linux Kernel=3.0.19
Linux Kernel=3.0.20
Linux Kernel=3.0.21
Linux Kernel=3.0.22
Linux Kernel=3.0.23
Linux Kernel=3.0.24
Linux Kernel=3.0.25
Linux Kernel=3.0.26
Linux Kernel=3.0.27
Linux Kernel=3.0.28
Linux Kernel=3.0.29
Linux Kernel=3.0.30
Linux Kernel=3.0.31
Linux Kernel=3.0.32
Linux Kernel=3.0.33
Linux Kernel=3.0.34
Linux Kernel=3.0.35
Linux Kernel=3.0.36
Linux Kernel=3.0.37
Linux Kernel=3.0.38
Linux Kernel=3.0.39
Linux Kernel=3.0.40
Linux Kernel=3.0.41
Linux Kernel=3.0.42
Linux Kernel=3.0.43
Linux Kernel=3.0.44
Linux Kernel=3.1
Linux Kernel=3.1-rc1
Linux Kernel=3.1-rc2
Linux Kernel=3.1-rc3
Linux Kernel=3.1-rc4
Linux Kernel=3.1.1
Linux Kernel=3.1.2
Linux Kernel=3.1.3
Linux Kernel=3.1.4
Linux Kernel=3.1.5
Linux Kernel=3.1.6
Linux Kernel=3.1.7
Linux Kernel=3.1.8
Linux Kernel=3.1.9
Linux Kernel=3.1.10
Linux Kernel=3.2
Linux Kernel=3.2
Linux Kernel=3.2-rc2
Linux Kernel=3.2-rc3
Linux Kernel=3.2-rc4
Linux Kernel=3.2-rc5
Linux Kernel=3.2-rc6
Linux Kernel=3.2-rc7
Linux Kernel=3.2.1
Linux Kernel=3.2.1
Linux Kernel=3.2.2
Linux Kernel=3.2.3
Linux Kernel=3.2.4
Linux Kernel=3.2.5
Linux Kernel=3.2.6
Linux Kernel=3.2.7
Linux Kernel=3.2.8
Linux Kernel=3.2.9
Linux Kernel=3.2.10
Linux Kernel=3.2.11
Linux Kernel=3.2.12
Linux Kernel=3.2.13
Linux Kernel=3.2.14
Linux Kernel=3.2.15
Linux Kernel=3.2.16
Linux Kernel=3.2.17
Linux Kernel=3.2.18
Linux Kernel=3.2.19
Linux Kernel=3.2.20
Linux Kernel=3.2.21
Linux Kernel=3.2.22
Linux Kernel=3.2.23
Linux Kernel=3.2.24
Linux Kernel=3.2.25
Linux Kernel=3.2.26
Linux Kernel=3.2.27
Linux Kernel=3.2.28
Linux Kernel=3.2.29
Linux Kernel=3.2.30
Linux Kernel=3.3
Linux Kernel=3.3-rc1
Linux Kernel=3.3-rc2
Linux Kernel=3.3-rc3
Linux Kernel=3.3-rc4
Linux Kernel=3.3-rc5
Linux Kernel=3.3-rc6
Linux Kernel=3.3-rc7
Linux Kernel=3.3.1
Linux Kernel=3.3.2
Linux Kernel=3.3.3
Linux Kernel=3.3.4
Linux Kernel=3.3.5
Linux Kernel=3.3.6
Linux Kernel=3.3.7
Linux Kernel=3.3.8
Linux Kernel=3.4
Linux Kernel=3.4
Linux Kernel=3.4-rc1
Linux Kernel=3.4-rc1
Linux Kernel=3.4-rc2
Linux Kernel=3.4-rc2
Linux Kernel=3.4-rc3
Linux Kernel=3.4-rc3
Linux Kernel=3.4-rc4
Linux Kernel=3.4-rc4
Linux Kernel=3.4-rc5
Linux Kernel=3.4-rc5
Linux Kernel=3.4-rc6
Linux Kernel=3.4-rc6
Linux Kernel=3.4-rc7
Linux Kernel=3.4-rc7
Linux Kernel=3.4.1
Linux Kernel=3.4.1
Linux Kernel=3.4.2
Linux Kernel=3.4.2
Linux Kernel=3.4.3
Linux Kernel=3.4.3
Linux Kernel=3.4.4
Linux Kernel=3.4.4
Linux Kernel=3.4.5
Linux Kernel=3.4.5
Linux Kernel=3.4.10
Linux Kernel=3.4.11
Linux Kernel=3.4.12
Linux Kernel=3.4.13
Linux Kernel=3.4.14
Linux Kernel=3.4.15
Linux Kernel=3.4.16
Linux Kernel=3.4.17
Linux Kernel=3.4.18
Linux Kernel=3.4.19
Linux Kernel=3.4.20
Linux Kernel=3.4.21
Linux Kernel=3.4.22
Linux Kernel=3.4.23
Linux Kernel=3.4.24
Linux Kernel=3.5.1
Linux Kernel=3.5.2
Linux Kernel=3.5.3
Linux Kernel=3.5.4
Linux Kernel=3.5.5
Linux Kernel=3.5.6
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-5517?

    CVE-2012-5517 is classified as a high severity vulnerability due to the potential for unprivileged local users to crash the system.

  • How do I fix CVE-2012-5517?

    To fix CVE-2012-5517, upgrade to the patched versions of the Linux Kernel, specifically 5.10.223-1 or higher.

  • What systems are affected by CVE-2012-5517?

    CVE-2012-5517 affects various versions of the Linux Kernel up to 3.5.7 and includes release candidates and specific versions like 3.0.1 through 3.0.44.

  • Can CVE-2012-5517 be exploited remotely?

    No, CVE-2012-5517 can only be exploited locally by unprivileged users on the affected systems.

  • Is there any known workaround for CVE-2012-5517?

    There are no effective workarounds for CVE-2012-5517; the only solution is to apply the appropriate kernel updates.

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