CVE-2010-2798
Published: 8 September 2010
The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.
From the Ubuntu Security Team
Bob Peterson discovered that GFS2 rename operations did not correctly validate certain sizes. A local attacker could exploit this to crash the system, leading to a denial of service.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Released
(2.6.24-28.80)
|
|
| jaunty |
Released
(2.6.28-19.66)
|
|
| karmic |
Released
(2.6.31-22.67)
|
|
| lucid |
Not vulnerable
|
|
| maverick |
Not vulnerable
(2.6.35)
|
|
| upstream |
Released
(2.6.35)
|
|
|
Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=728a756b8fcd22d80e2dbba8117a8a3aafd3f203 hardy: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2798/patches/hardy/linux/0001-GFS2-rename-causes-kernel-Oops.txt jaunty: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2798/patches/jaunty/linux/0001-GFS2-rename-causes-kernel-Oops.txt karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-2798/patches/karmic/linux/0001-GFS2-rename-causes-kernel-Oops.txt |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Released
(2.6.31-307.21)
|
|
| lucid |
Released
(2.6.32-309.18)
|
|
| maverick |
Ignored
(end of life)
|
|
| upstream |
Needs triage
|
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Released
(2.6.31-112.30)
|
|
| lucid |
Released
(2.6.31-608.22)
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
| hardy |
Does not exist
|
|
| karmic |
Does not exist
|
|
| lucid |
Released
(2.6.35-25.44~lucid1)
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
dapper |
Not vulnerable
|
| hardy |
Does not exist
|
|
| jaunty |
Does not exist
|
|
| karmic |
Does not exist
|
|
| lucid |
Does not exist
|
|
| maverick |
Does not exist
|
|
| upstream |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |