Bug 987633 (CVE-2013-4163) - CVE-2013-4163 Kernel: net: panic while appending data to a corked IPv6 socket in ip6_append_data_mtu
Summary: CVE-2013-4163 Kernel: net: panic while appending data to a corked IPv6 socket...
Alias: CVE-2013-4163
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 987636 987638 987639 994346
Blocks: 984924
TreeView+ depends on / blocked
Reported: 2013-07-23 19:32 UTC by Prasad Pandit
Modified: 2023-05-11 23:48 UTC (History)
27 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2014-06-10 05:26:12 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1264 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2013-09-16 21:01:17 UTC

Description Prasad Pandit 2013-07-23 19:32:27 UTC
Linux kernel built with the IPv6 networking support is vulnerable to a crash
while appending data to an IPv6 socket with UDP_CORKED option set. UDP_CORK
enables accumulating data and sending it as single datagram.

An unprivileged user/program could use this flaw to crash the kernel, resulting in local DoS.

Upstream fix:
 -> https://git.kernel.org/linus/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be


Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.

Comment 2 Prasad Pandit 2013-07-23 19:41:32 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 987639]

Comment 3 Prasad Pandit 2013-07-23 19:46:17 UTC

This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.

This issue affects the version of the kernel package as shipped with Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2 may address this issue.

Comment 7 errata-xmlrpc 2013-09-16 17:14:11 UTC
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:1264 https://rhn.redhat.com/errata/RHSA-2013-1264.html

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