high
8.4
CWE
119
Advisory Published
CVE Published
Updated

CVE-2016-3134: Buffer Overflow

First published: Mon Mar 14 2016(Updated: )

In the mark_source_chains function (net/ipv4/netfilter/ip_tables.c) it is possible for a user-supplied ipt_entry structure to have a large next_offset field. This field is not bounds checked prior to writing a counter value at the supplied offset. Proposed fix: patch v1 message: <a href="http://marc.info/?l=netfilter-devel&amp;m=145757134822741&amp;w=2">http://marc.info/?l=netfilter-devel&amp;m=145757134822741&amp;w=2</a> patch v2 thread: <a href="http://marc.info/?t=145757149500006&amp;r=1&amp;w=2">http://marc.info/?t=145757149500006&amp;r=1&amp;w=2</a> patch v2 message: <a href="http://marc.info/?l=netfilter-devel&amp;m=145762719008418&amp;w=2">http://marc.info/?l=netfilter-devel&amp;m=145762719008418&amp;w=2</a> patch v2 thread: (none yet) <a href="http://marc.info/?l=netfilter-devel&amp;r=4&amp;b=201603&amp;w=2">http://marc.info/?l=netfilter-devel&amp;r=4&amp;b=201603&amp;w=2</a> CVE request and assignment: <a href="http://seclists.org/oss-sec/2016/q1/581">http://seclists.org/oss-sec/2016/q1/581</a> <a href="http://seclists.org/oss-sec/2016/q1/619">http://seclists.org/oss-sec/2016/q1/619</a> Audit done by netfilter team found several related bugs, patches to better validate rulesets are currently queued in pablos nf-next tree upstream (use "parent" link to cycle to next one - there are 17 additional patches): <a href="https://git.kernel.org/cgit/linux/kernel/git/pablo/nf-next.git/commit/?id=d7591f0c41ce3e67600a982bab6989ef0f07b3ce">https://git.kernel.org/cgit/linux/kernel/git/pablo/nf-next.git/commit/?id=d7591f0c41ce3e67600a982bab6989ef0f07b3ce</a>

Credit: meissner@suse.de security@opentext.com

Affected SoftwareAffected VersionHow to fix
SUSE Linux Enterprise Software Development Kit=11.0-sp4
SUSE Linux Enterprise Software Development Kit=12.0
SUSE Linux Enterprise Software Development Kit=12.0-sp1
SUSE Linux Enterprise Debuginfo=11.0-sp4
SUSE Linux Enterprise Desktop=12.0
SUSE Linux Enterprise Desktop=12.0-sp1
SUSE Linux Enterprise Live Patching=12.0
SUSE Linux Enterprise Module for Public Cloud=12.0
SUSE Linux Enterprise Real Time Extension=12.0-sp1
SUSE Linux Enterprise Server=11.0-extra
SUSE Linux Enterprise Server=11.0-sp4
SUSE Linux Enterprise Server=12.0
SUSE Linux Enterprise Server=12.0-sp1
SUSE Linux Enterprise Workstation Extension=12.0
SUSE Linux Enterprise Workstation Extension=12.0-sp1
Linux Kernel<=4.5.2
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.15-1

Remedy

https://github.com/torvalds/linux/commit/54d83fc74aa9ec72794373cb47432c5f7fb1a309

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-3134?

    CVE-2016-3134 has been classified as a medium severity vulnerability due to potential information leaks and denial of service risks.

  • How do I fix CVE-2016-3134?

    To fix CVE-2016-3134, upgrade your kernel to a version that includes the security patch, such as 5.10.223-1, 5.10.226-1, or later.

  • Which software is affected by CVE-2016-3134?

    CVE-2016-3134 affects various versions of SUSE Linux, including the Enterprise Software Development Kit and Linux Kernel versions up to 4.5.2.

  • What does CVE-2016-3134 exploit?

    CVE-2016-3134 exploits the lack of bounds checking on a user-supplied ipt_entry structure, leading to possible memory corruption.

  • Is there a workaround for CVE-2016-3134?

    There are no known effective workarounds for CVE-2016-3134, and updating to a patched version is the recommended course of action.

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