National Cyber Awareness System
Vulnerability Summary for CVE-2008-4113
Original release date:09/16/2008
Last revised:10/30/2012
Source:
US-CERT/NIST
Overview
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.
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: XF
Name: kernel-sctpgetsockopthmac-info-disclosure(45188)
External Source: UBUNTU
Name: USN-659-1
External Source: MISC
Name: http://www.trapkit.de/advisories/TKADV2008-007.txt
External Source: SECTRACK
Name: 1021000
External Source: BID
Name: 31121
External Source: BUGTRAQ
Name: 20080911 [TKADV2008-007] Linux Kernel SCTP-AUTH API Information Disclosure Vulnerability and NULL Pointer Dereferences
External Source: REDHAT
Name: RHSA-2008:0857
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: MILW0RM
Name: 7618
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: SREASON
Name: 4266
External Source: SECUNIA
Name: 32393
External Source: SECUNIA
Name: 32315
External Source: SECUNIA
Name: 32190
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
Technical Details
- Information Leak / Disclosure (CWE-200)
