The pfs_getextattr function in FreeBSD 7.x before 7.3-RELEASE and 8.x before 8.0-RC1 unlocks a mutex that was not previously locked, which allows local users to cause a denial of service (kernel panic), overwrite arbitrary memory locations, and possibly execute arbitrary code via vectors related to opening a file on a file system that uses pseudofs.
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Link | Tags |
---|---|
http://www.vupen.com/english/advisories/2010/2956 | vendor advisory broken link vdb entry |
http://www.securitytracker.com/id?1024724 | broken link third party advisory vdb entry |
http://secunia.com/advisories/42200 | vendor advisory broken link third party advisory |
https://exchange.xforce.ibmcloud.com/vulnerabilities/63218 | third party advisory vdb entry |
https://www.exploit-db.com/exploits/15206/ | third party advisory vdb entry exploit |
http://security.FreeBSD.org/advisories/FreeBSD-SA-10:09.pseudofs.asc | vendor advisory |