CVE-2011-3363
Published: 3 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.
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" |
Priority
Medium
CVSS 3 base score: 6.5
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
hardy |
Not vulnerable
|
| lucid |
Released
(2.6.32-33.64)
|
|
| maverick |
Released
(2.6.35-30.61)
|
|
| natty |
Released
(2.6.38-10.44)
|
|
| oneiric |
Not vulnerable
(2.6.39-0.4)
|
|
| upstream |
Released
(2.6.39)
|
|
|
Patches: Introduced by e4cce94c9c8797b08faf6a79396df4d175e377fa Introduced by e4cce94c9c8797b08faf6a79396df4d175e377fa |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.32-317.32)
|
|
| maverick |
Ignored
(binary supplied by "linux" now)
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.31-611.29)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.35-30.61~lucid1)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.38-10.44~lucid1)
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Not vulnerable
|
|
| maverick |
Does not exist
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Released
(2.6.32-217.34)
|
|
| maverick |
Released
(2.6.32-417.34)
|
|
| natty |
Does not exist
|
|
| oneiric |
Does not exist
|
|
| upstream |
Released
(2.6.39)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
| lucid |
Does not exist
|
|
| maverick |
Released
(2.6.35-903.26)
|
|
| natty |
Released
(2.6.38-1209.17)
|
|
| oneiric |
Not vulnerable
(2.6.38-1309.13)
|
|
| upstream |
Released
(2.6.39)
|
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3363
- https://ubuntu.com/security/notices/USN-1167-1
- https://ubuntu.com/security/notices/USN-1168-1
- https://ubuntu.com/security/notices/USN-1162-1
- https://ubuntu.com/security/notices/USN-1159-1
- https://ubuntu.com/security/notices/USN-1161-1
- https://ubuntu.com/security/notices/USN-1242-1
- https://ubuntu.com/security/notices/USN-1241-1
- https://ubuntu.com/security/notices/USN-1243-1
- https://ubuntu.com/security/notices/USN-1244-1
- https://ubuntu.com/security/notices/USN-1256-1
- https://ubuntu.com/security/notices/USN-1281-1
- NVD
- Launchpad
- Debian