National Cyber-Alert System
Vulnerability Summary for CVE-2009-3001
Original release date:08/28/2009
Last revised:08/31/2009
Source:
US-CERT/NIST
Overview
The llc_ui_getname function in net/llc/af_llc.c in the Linux kernel 2.6.31-rc7 and earlier does not initialize a certain data structure, which allows local users to read the contents of some kernel memory locations by calling getsockname on an AF_LLC socket.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.9
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information
Official Statement from Red Hat (08/31/2009)
Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for PF_LLC sockets in the Linux kernels.
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=519305
External Source: XF
Name: linux-kernel-afllcgetsockname-info-disc(52732)
External Source: BID
Name: 36126
External Source: MLIST
Name: [oss-security] 20090826 CVE request: kernel: AF_LLC getsockname 5-Byte Stack Disclosure
External Source: MILW0RM
Name: 9513
External Source: MISC
Name: http://jon.oberheide.org/files/llc-getsockname-leak.c
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=28e9fc592cb8c7a43e4d3147b38be6032a0e81bc
