CVE-2007-4849

Description

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.

References

http://www.ubuntu.com/usn/usn-574-1

http://www.ubuntu.com/usn/usn-558-1

http://www.securityfocus.com/bid/25838

http://www.debian.org/security/2007/dsa-1378

http://secunia.com/advisories/28706

http://secunia.com/advisories/28170

http://secunia.com/advisories/26978

http://lists.infradead.org/pipermail/linux-mtd-cvs/2007-August/005897.html

http://git.infradead.org/?p=mtd-2.6.git%3Ba=commitdiff%3Bh=9ed437c50d89eabae763dd422579f73fdebf288d

http://dev.laptop.org/ticket/2732

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3