medium4.6Public exploit code
CVE-2008-4210
fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain th…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Linux Kernel < 2.6.22 - 'ftruncate()'/'open()' Local Privilege Escalation2008-10-27 · local · linux · Verified
Impact
fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | through 2.6.21.7 Versions 2.2.27, 2.4.36, 2.4.36.1, 2.4.36.2, 2.4.36.3 |
Weakness classification
References
- NVD record
- CVE.org record
- http://bugzilla.kernel.org/show_bug.cgi?id=8420
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=7b82dc0e64e93f430182f36b46b79fcee87d3532
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2008-12/msg00001.html
- http://rhn.redhat.com/errata/RHSA-2008-0972.html
- http://secunia.com/advisories/32237
- http://secunia.com/advisories/32344
- http://secunia.com/advisories/32356
- http://secunia.com/advisories/32485
- http://secunia.com/advisories/32759
- http://secunia.com/advisories/32799
- http://secunia.com/advisories/32918
- http://secunia.com/advisories/33201
- http://secunia.com/advisories/33280
- http://www.debian.org/security/2008/dsa-1653
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:220
- http://www.openwall.com/lists/oss-security/2008/09/24/5
- http://www.openwall.com/lists/oss-security/2008/09/24/8
- http://www.redhat.com/support/errata/RHSA-2008-0787.html
- http://www.redhat.com/support/errata/RHSA-2008-0957.html
- http://www.redhat.com/support/errata/RHSA-2008-0973.html