National Cyber-Alert System
Vulnerability Summary for CVE-2008-4445
Original release date:10/06/2008
Last revised:11/15/2008
Source:
US-CERT/NIST
Overview
The sctp_auth_ep_set_hmacs function in net/sctp/auth.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, does not verify that the identifier index is within the bounds established by SCTP_AUTH_HMAC_ID_MAX, which allows local users to obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL request involving the sctp_getsockopt function, a different vulnerability than CVE-2008-4113.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information
- Official Statement from Red Hat (01/15/2009)
-
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and 5.
It was addressed in Red Hat Enterprise MRG for RHEL-5 via: https://rhn.redhat.com/errata/RHSA-2008-0857.html
References to Advisories, Solutions, and Tools
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External Source: UBUNTU
Name: USN-659-1
External Source: SECTRACK
Name: 1021001
External Source: BID
Name: 31121
External Source: REDHAT
Name: RHSA-2008:0857
External Source: MLIST
Name: [oss-security] 20080929 Re: CVE-2008-4113 update: kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option
External Source: MLIST
Name: [oss-security] 20080927 Re: CVE-2008-4113 update: kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option
External Source: MLIST
Name: [oss-security] 20080926 Re: CVE-2008-4113 update: kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option
External Source: MLIST
Name: [oss-security] 20080925 CVE-2008-4113 update: kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option
External Source: MANDRIVA
Name: MDVSA-2008:223
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.4
External Source: DEBIAN
Name: DSA-1655
External Source: SECUNIA
Name: 32393
External Source: SECUNIA
Name: 32190
External Source: MLIST
Name: [linux-sctp] 20080827 [PATCH 2/2] sctp: fix random memory dereference with SCTP_HMAC_IDENT option.
External Source: MLIST
Name: [linux-sctp] 20080827 [PATCH 0/2] sctp: additional overflow fixes
External Source: SUSE
Name: SUSE-SA:2008:053
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commit;h=d97240552cd98c4b07322f30f66fd9c3ba4171de
