National Cyber-Alert System
Vulnerability Summary for CVE-2009-2698
Original release date:08/27/2009
Last revised:10/27/2009
Source:
US-CERT/NIST
Overview
The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
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; Allows unauthorized modification; Allows disruption of service
Official Statement from Red Hat (09/14/2009)
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise MRG. Updates for Red Hat Enterprise Linux 3, 4 and 5 to correct this issue are available: https://rhn.redhat.com/cve/CVE-2009-2698.html
References to Advisories, Solutions, and Tools
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External Source: BID
Name: 36108
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=518034
External Source: SECTRACK
Name: 1022761
External Source: REDHAT
Name: RHSA-2009:1233
External Source: MLIST
Name: [oss-security] 20090825 CVE-2009-2698 kernel: udp socket NULL ptr dereference
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
Type: Advisory
External Source: SECUNIA
Name: 36510
Type: Advisory
External Source: SECUNIA
Name: 36430
Type: Advisory
External Source: SECUNIA
Name: 23073
Type: Advisory
External Source: REDHAT
Name: RHSA-2009:1223
External Source: REDHAT
Name: RHSA-2009:1222
External Source: SUSE
Name: SUSE-SA:2009:046
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1e0c14f49d6b393179f423abbac47f85618d3d46
