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CVE-2007-4849

Published: 12 September 2007

JFFS2, as used on One Laptop Per Child (OLPC) build 542 and possibly other Linux systems, when POSIX ACL support is enabled, does not properly store permissions during (1) inode creation or (2) ACL setting, which might allow local users to access restricted files or directories after a remount of a filesystem, related to "legacy modes" and an inconsistency between dentry permissions and inode permissions.

Priority

Low

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (2.6.24)
linux-source-2.6.15
Launchpad, Ubuntu, Debian
dapper Not vulnerable
(code not present)
upstream Needs triage

linux-source-2.6.17
Launchpad, Ubuntu, Debian
edgy
Released (2.6.17.1-12.42)
upstream Needs triage

linux-source-2.6.20
Launchpad, Ubuntu, Debian
feisty
Released (2.6.20-16.33)
upstream Needs triage

linux-source-2.6.22
Launchpad, Ubuntu, Debian
gutsy
Released (2.6.22-14.47)
upstream Needs triage