high
7.8
CWE
20
Advisory Published
CVE Published
Updated

CVE-2014-3673: Input Validation

First published: Tue Sep 30 2014(Updated: )

Kernel panic (via skb_over_panic) is encountered when sctp stack receive a malformed asconf chunks. skb_over_panic: text:ffffffffa01ea1c3 len:31056 put:30768 head:ffff88011bd81800 data:ffff88011bd81800 tail:0x7950 end:0x440 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:129! [...] Call Trace: <IRQ> [<ffffffff8144fb1c>] skb_put+0x5c/0x70 [<ffffffffa01ea1c3>] sctp_addto_chunk+0x63/0xd0 [sctp] [<ffffffffa01eadaf>] sctp_process_asconf+0x1af/0x540 [sctp] [<ffffffff8152d025>] ? _read_unlock_bh+0x15/0x20 [<ffffffffa01e0038>] sctp_sf_do_asconf+0x168/0x240 [sctp] ... A remote attacker could use this flaw to crash the system. Acknowledgements: This issue was discovered by Liu Wei of Red Hat.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Kernel>=2.6.12<3.2.64
Linux Kernel>=3.3<3.4.107
Linux Kernel>=3.5<3.10.61
Linux Kernel>=3.11<3.12.34
Linux Kernel>=3.13<3.14.25
Linux Kernel>=3.15<3.16.35
Linux Kernel>=3.17<3.17.4
Red Hat Enterprise Linux=5.0
Red Hat Enterprise MRG=2.0
Ubuntu Linux=12.04
Debian GNU/Linux=7.0
openSUSE Evergreen=11.4
SUSE Linux Enterprise Software Development Kit=12
SUSE Linux Enterprise Workstation Extension=12
SUSE Linux Enterprise Server=10-sp4
SUSE Linux Enterprise Server=11-sp1
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Server=12
Oracle Linux=5
Oracle Linux=6
Oracle Linux=7
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
Ubuntu=12.04
Debian=7.0

Remedy

https://github.com/torvalds/linux/commit/9de7922bc709eee2f609cd01d98aaedc4cf5ea74

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2014-3673?

    CVE-2014-3673 is considered a serious vulnerability as it can lead to a kernel panic when the SCTP stack receives malformed ASCONF chunks.

  • How do I fix CVE-2014-3673?

    To fix CVE-2014-3673, ensure that you update your Linux kernel to versions 5.10.223-1, 5.10.226-1, 6.1.123-1, or later versions that include patches for this vulnerability.

  • Which systems are affected by CVE-2014-3673?

    CVE-2014-3673 affects various versions of the Linux kernel including those between 2.6.12 and 3.17, along with certain versions of Red Hat Enterprise Linux, Ubuntu, Oracle Linux, and SUSE Linux.

  • What are the potential impacts of CVE-2014-3673?

    The potential impacts of CVE-2014-3673 include system instability and crashes due to kernel panic, which can disrupt service and compromise system reliability.

  • Is there a workaround for CVE-2014-3673?

    There is no official workaround for CVE-2014-3673; upgrading the kernel is the recommended approach to mitigate the vulnerability.

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