high
7.8
CWE
476
Advisory Published
CVE Published
Updated

CVE-2009-2698: Null Pointer Dereference

First published: Tue Aug 18 2009(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Linux Kernel<2.6.19
Ubuntu=6.06
Ubuntu=8.04
Ubuntu=8.10
Ubuntu=9.04
SUSE Linux Enterprise Desktop=10-sp2
SUSE Linux Enterprise Server=9
SUSE Linux Enterprise Server=10-sp2
Fedora=10
Red Hat Enterprise Linux Desktop=4.0
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Server EUS=4.8
Red Hat Enterprise Linux Server EUS=5.3
Red Hat Enterprise Linux Server=4.0
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=5.3
Red Hat Enterprise Linux Workstation=4.0
Red Hat Enterprise Linux Workstation=5.0
VMware vCenter=4.0
VMware ESXi=4.0

Remedy

http://www.securityfocus.com/bid/36108

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-2698?

    CVE-2009-2698 is rated as a critical vulnerability that may allow local users to escalate privileges or cause a denial of service.

  • How do I fix CVE-2009-2698?

    To mitigate CVE-2009-2698, you should upgrade the Linux kernel to version 2.6.19 or later.

  • What systems are affected by CVE-2009-2698?

    CVE-2009-2698 affects multiple versions of the Linux kernel, as well as specific distributions like Ubuntu, SUSE, and Red Hat.

  • Can CVE-2009-2698 lead to a system crash?

    Yes, exploitation of CVE-2009-2698 can result in a NULL pointer dereference, leading to a system crash.

  • Is CVE-2009-2698 exploitable remotely?

    CVE-2009-2698 is not directly exploitable remotely as it requires local user access to the system.

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