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Bug 237959 (CVE-2008-4113) - Linux <2.6.26.4 sctp: fix random memory dereference with SCTP_HMAC_IDENT option (CVE-2008-4113)
Summary: Linux <2.6.26.4 sctp: fix random memory dereference with SCTP_HMAC_IDENT opti...
Status: RESOLVED FIXED
Alias: CVE-2008-4113
Product: Gentoo Security
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
URL: http://git.kernel.org/?p=linux/kernel...
Whiteboard: [linux <2.6.25.17] [linux >=2.6.26 <2...
Keywords:
Depends on:
Blocks:
 
Reported: 2008-09-17 19:38 UTC by Robert Buchholz (RETIRED)
Modified: 2013-09-05 02:49 UTC (History)
2 users (show)

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Package list:
Runtime testing required: ---

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Description Robert Buchholz (RETIRED) gentoo-dev 2008-09-17 19:38:18 UTC 
CVE-2008-4113 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-4113):
  The sctp_getsockopt_hmac_ident function in net/sctp/socket.c in the
  Stream Control Transmission Protocol (sctp) implementation in the
  Linux kernel before 2.6.26.4, when the SCTP-AUTH extension is
  enabled, relies on an untrusted length value to limit copying of data
  from kernel memory, which allows local users to obtain sensitive
  information via a crafted SCTP_HMAC_IDENT IOCTL request involving the
  sctp_getsockopt function.
Comment 1 kfm 2008-10-12 22:29:53 UTC 
Some further observations:

* Also included as of 2.6.25.17 - updating the status whiteboard accordingly.

* Fixed in genpatches-2.6.25-11 (gentoo-sources currently being the only consumer)

* Fixed in >=hardened-sources-2.6.25-r6 and >=hardened-sources-2.6.26-r2