The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel before 2.6.38-rc2 does not check the sign of a certain integer field, which allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/45986 | third party advisory vdb entry |
| http://www.securitytracker.com/id?1025195 | third party advisory vdb entry |
| http://openwall.com/lists/oss-security/2011/01/24/2 | patch mailing list third party advisory |
| http://www.securityfocus.com/archive/1/520102/100/0/threaded | mailing list third party advisory vdb entry |
| http://secunia.com/advisories/46397 | third party advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/64988 | third party advisory vdb entry |
| http://secunia.com/advisories/43009 | third party advisory |
| http://www.vmware.com/security/advisories/VMSA-2011-0012.html | third party advisory |
| http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.38-rc2 | broken link |
| http://openwall.com/lists/oss-security/2011/01/25/2 | patch mailing list third party advisory |
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cb26a24ee9706473f31d34cc259f4dcf45cd0644 |