CVE-2010-2946

Name: CVE-2010-2946
Creator: NVD / NIST
Published: 2010-09-29T17:00:04.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.43%

Last modified Jun 16, 2026

CVE-2010-2946 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.43%

34.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.35.2
Canonical	Ubuntu Linux	6.06
Canonical	Ubuntu Linux	8.04
Canonical	Ubuntu Linux	9.04
Canonical	Ubuntu Linux	9.10
Canonical	Ubuntu Linux	10.04
Canonical	Ubuntu Linux	10.10

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=aca0fa34bdaba39bfddddba8ca70dba4782e8fe6
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/41321Third Party Advisory
http://secunia.com/advisories/43291Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.10Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.51Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.2Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/20/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/20/11Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/42589Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
http://www.vupen.com/english/advisories/2011/0298Third Party Advisory
http://www.vupen.com/english/advisories/2011/0375Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=aca0fa34bdaba39bfddddba8ca70dba4782e8fe6
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-11/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.htmlMailing List, Third Party Advisory
http://secunia.com/advisories/41321Third Party Advisory
http://secunia.com/advisories/43291Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.10Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.51Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.2Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/20/1Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/20/11Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/42589Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
http://www.vupen.com/english/advisories/2011/0298Third Party Advisory
http://www.vupen.com/english/advisories/2011/0375Third Party Advisory

Timeline

Published: Sep 29, 2010
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2010-2946?

How severe is CVE-2010-2946?

Severity scoring for CVE-2010-2946 is pending analysis. The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2010-2946?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2010-2946?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST