CVE-2010-4346
Published: 22 December 2010
The install_special_mapping function in mm/mmap.c in the Linux kernel before 2.6.37-rc6 does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.
From the Ubuntu Security Team
Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
Notes
Author | Note |
---|---|
kees | Ubuntu mmap_min_addr default is 64k, so this isn't very interesting in our case |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Released
(2.6.24-29.88)
|
|
karmic |
Ignored
(end of life, was pending)
|
|
lucid |
Released
(2.6.32-29.57)
|
|
maverick |
Released
(2.6.35-27.47)
|
|
natty |
Released
(2.6.37-10.24)
|
|
upstream |
Released
(2.6.37~rc6)
|
|
Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=462e635e5b73ba9a4c03913b77138cd57ce4b050 |
||
linux-ec2 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Does not exist
|
|
karmic |
Ignored
(end of life)
|
|
lucid |
Released
(2.6.32-313.25)
|
|
maverick |
Ignored
(end of life)
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Does not exist
|
|
karmic |
Ignored
(end of life)
|
|
lucid |
Released
(2.6.31-609.26)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Does not exist
|
|
karmic |
Does not exist
|
|
lucid |
Released
(2.6.35-28.50~lucid1)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
hardy |
Does not exist
|
lucid |
Not vulnerable
(2.6.38-1.27~lucid1)
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Does not exist
|
|
karmic |
Ignored
(end of life)
|
|
lucid |
Released
(2.6.32-214.30)
|
|
maverick |
Released
(2.6.32-414.30)
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-source-2.6.15 Launchpad, Ubuntu, Debian |
dapper |
Not vulnerable
|
hardy |
Does not exist
|
|
karmic |
Does not exist
|
|
lucid |
Does not exist
|
|
maverick |
Does not exist
|
|
natty |
Does not exist
|
|
upstream |
Released
(2.6.37~rc6)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
dapper |
Does not exist
|
hardy |
Does not exist
|
|
karmic |
Does not exist
|
|
lucid |
Does not exist
|
|
maverick |
Released
(2.6.35-903.22)
|
|
natty |
Not vulnerable
(2.6.38-1201.2)
|
|
upstream |
Released
(2.6.37~rc6)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4346
- https://ubuntu.com/security/notices/USN-1080-1
- https://ubuntu.com/security/notices/USN-1081-1
- https://ubuntu.com/security/notices/USN-1080-2
- https://ubuntu.com/security/notices/USN-1093-1
- https://ubuntu.com/security/notices/USN-1105-1
- https://ubuntu.com/security/notices/USN-1119-1
- https://ubuntu.com/security/notices/USN-1164-1
- https://ubuntu.com/security/notices/USN-1167-1
- https://ubuntu.com/security/notices/USN-1187-1
- NVD
- Launchpad
- Debian