CWE Code: 310
Vulnerability Type: privilege_escalation
CVSS Score: 4.6
CWE Name:  Cryptographic Issues
Summary: the get_instantiation_keyring function in security/keys/keyctl.c in the keys subsystem in the linux kernel before 2.6.32-rc5 does not properly maintain the reference count of a keyring, which allows local users to gain privileges or cause a denial of service (oops) via vectors involving calls to this function without specifying a keyring by id, as demonstrated by a series of keyctl request2 and keyctl list commands.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): PARTIAL/PARTIAL/PARTIAL
Published Date: 2009-11-02
Last Modified Date: 2012-03-19