CVE-2011-3638
Priority
Medium
Description
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified
extent as dirty in certain cases of extent splitting, which allows local
users to cause a denial of service (system crash) via vectors involving
ext4 umount and mount operations.
extent as dirty in certain cases of extent splitting, which allows local
users to cause a denial of service (system crash) via vectors involving
ext4 umount and mount operations.
Ubuntu-Description
Zheng Liu discovered a flaw in how the ext4 filesystem splits extents. A
local unprivileged attacker could exploit this to crash the system,
leading to a denial of service.
local unprivileged attacker could exploit this to crash the system,
leading to a denial of service.
References
Notes
tyhicks> Introduced by 56055d3ae4cc7fa6d2b10885f20269de8a989ed7
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | DNE |
| Ubuntu 12.04 LTS (Precise Pangolin): | not-affected (3.2.0-1600.1) |
| Ubuntu 12.10 (Quantal Quetzal): | not-affected (3.2.0-1602.5) |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | deferred (massive patch that requires significant backport effort) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | released (3.0.0-5.6~lucid1) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | ignored (reached end-of-life) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | DNE |
| Ubuntu 10.04 LTS (Lucid Lynx): | DNE |
| Ubuntu 12.04 LTS (Precise Pangolin): | not-affected |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Patches:
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | ignored (reached end-of-life) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | ignored (reached end-of-life) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | deferred (massive patch that requires significant backport effort) |
| Ubuntu 12.04 LTS (Precise Pangolin): | not-affected (3.1.0-1.1) |
| Ubuntu 12.10 (Quantal Quetzal): | not-affected (3.1.0-1.1) |
| Ubuntu 13.04 (Raring Ringtail): | not-affected (3.1.0-1.1) |
| Ubuntu 13.10 (Saucy Salamander): | not-affected (3.1.0-1.1) |
Patches:
| Introduced by 56055d3ae4cc7fa6d2b10885f20269de8a989ed7 | Fixed by 667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3 |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | DNE |
| Ubuntu 12.04 LTS (Precise Pangolin): | not-affected |
| Ubuntu 12.10 (Quantal Quetzal): | not-affected |
| Ubuntu 13.04 (Raring Ringtail): | not-affected |
| Ubuntu 13.10 (Saucy Salamander): | not-affected |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | ignored (reached end-of-life) |
| Ubuntu 12.04 LTS (Precise Pangolin): | DNE |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |
Package
| Upstream: | released (3.0~rc1) |
| Ubuntu 10.04 LTS (Lucid Lynx): | DNE |
| Ubuntu 12.04 LTS (Precise Pangolin): | not-affected |
| Ubuntu 12.10 (Quantal Quetzal): | DNE |
| Ubuntu 13.04 (Raring Ringtail): | DNE |
| Ubuntu 13.10 (Saucy Salamander): | DNE |