CVE-2011-3363
Published: 03 October 2011
The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share.
From the Ubuntu security team
Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had no prefixpaths. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service.
Priority
CVSS 3 base score: 6.5
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
Patches: Introduced by e4cce94c9c8797b08faf6a79396df4d175e377fa Fixed by 70945643722ffeac779d2529a348f99567fa5c33 Introduced by e4cce94c9c8797b08faf6a79396df4d175e377fa Fixed by 221d1d797202984cb874e3ed9f1388593d34ee22 |
||
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.39)
|
Notes
Author | Note |
---|---|
mdeslaur | from oss-security: "If you have this, you might also want cifs: add fallback in is_path_accessible for old servers 221d1d797202984cb874e3ed9f1388593d34ee22" |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3363
- https://usn.ubuntu.com/usn/usn-1167-1
- https://usn.ubuntu.com/usn/usn-1168-1
- https://usn.ubuntu.com/usn/usn-1162-1
- https://usn.ubuntu.com/usn/usn-1159-1
- https://usn.ubuntu.com/usn/usn-1161-1
- https://usn.ubuntu.com/usn/usn-1242-1
- https://usn.ubuntu.com/usn/usn-1241-1
- https://usn.ubuntu.com/usn/usn-1243-1
- https://usn.ubuntu.com/usn/usn-1244-1
- https://usn.ubuntu.com/usn/usn-1256-1
- https://usn.ubuntu.com/usn/usn-1281-1
- NVD
- Launchpad
- Debian