CVE-2010-4083
Published: 30 November 2010
The copy_semid_to_user function in ipc/sem.c in the Linux kernel before 2.6.36 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via a (1) IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4) SEM_STAT command in a semctl system call.
From the Ubuntu security team
Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
Priority
Low
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
Patches: Upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=982f7c2b2e6a28f8f266e075d92e19c0dd4c6e56 |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.36~rc7)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4083
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
- https://ubuntu.com/security/notices/USN-1071-1
- https://ubuntu.com/security/notices/USN-1072-1
- https://ubuntu.com/security/notices/USN-1073-1
- https://ubuntu.com/security/notices/USN-1081-1
- https://ubuntu.com/security/notices/USN-1054-1
- https://ubuntu.com/security/notices/USN-1093-1
- https://ubuntu.com/security/notices/USN-1164-1
- https://ubuntu.com/security/notices/USN-1187-1
- https://ubuntu.com/security/notices/USN-1202-1
- NVD
- Launchpad
- Debian