CVE-2010-2946

Priority
Low
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.
Ubuntu-Description
Sergey Vlasov discovered that JFS did not correctly handle certain extended
attributes. A local attacker could bypass namespace access rules, leading
to a loss of privacy.
References
Assigned-to
sconklin
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.31-608.22)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.35-25.44~lucid1)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 11.04 (Natty Narwhal):DNE
Patches:
Dapper:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/dapper/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt
Package
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-309.18)
Ubuntu 11.04 (Natty Narwhal):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:needs-triage
Ubuntu 8.04 LTS (Hardy Heron):released (2.6.24-28.80)
Ubuntu 10.04 LTS (Lucid Lynx):not-affected
Ubuntu 11.04 (Natty Narwhal):not-affected
Patches:
Hardy:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/hardy/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt
Jaunty:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/jaunty/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt
Karmic:http://chinstrap.ubuntu.com/~sconklin/CVEs/CVE-2010-2946/patches/karmic/linux/0001-jfs-don-t-allow-os2-xattr-namespace-overlap-with-other.txt
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Updated: 2012-06-01 15:21:15 UTC (commit 5347)