low
2.1
CWE
20
Advisory Published
Updated

CVE-2010-2946: Input Validation

First published: Wed Sep 29 2010(Updated: )

fs/jfs/xattr.c in the Linux kernel before 2.6.35.2 does not properly handle a certain legacy format for storage of extended attributes, which might allow local users by bypass intended xattr namespace restrictions via an "os2." substring at the beginning of a name.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
debian/linux-2.6
Linux Kernel<2.6.35.2
Ubuntu Linux=6.06
Ubuntu Linux=8.04
Ubuntu Linux=9.04
Ubuntu Linux=9.10
Ubuntu Linux=10.04
Ubuntu Linux=10.10
Ubuntu=6.06
Ubuntu=8.04
Ubuntu=9.04
Ubuntu=9.10
Ubuntu=10.04
Ubuntu=10.10

Remedy

http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/hardy/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt

Remedy

http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/jaunty/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt

Remedy

http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/karmic/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt

Remedy

http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/dapper/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2010-2946?

    CVE-2010-2946 is considered a moderate vulnerability that could allow local users to bypass extended attribute namespace restrictions.

  • How do I fix CVE-2010-2946?

    To remediate CVE-2010-2946, you should upgrade your Linux kernel to version 2.6.35.2 or later.

  • Which versions of the Linux kernel are affected by CVE-2010-2946?

    CVE-2010-2946 affects Linux kernels prior to version 2.6.35.2.

  • Can CVE-2010-2946 be exploited remotely?

    No, CVE-2010-2946 can only be exploited by local users with access to the system.

  • What types of systems are vulnerable to CVE-2010-2946?

    CVE-2010-2946 impacts various Linux distributions, including older Ubuntu and Debian versions.

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