Linux Kernel keyctl_session_to_parent denial of service
|linux-kernel-keyctl-dos (61557)||Medium Risk|
The Linux Kernel is vulnerable to a denial of service, caused by NULL pointer dereference in the keyctl_session_to_parent() function. A remote attacker could exploit this vulnerability to cause the a kernel oops.
Denial of Service
Refer to Red Hat Bugzilla Bug 627440 for patch, upgrade or suggested workaround information. See References.
- Red Hat Bugzilla ¿ Bug 627440 : CVE-2010-2960 keyctl_session_to_parent NULL deref system crash.
- BID-42932: Linux Kernel 'keyctl_session_to_parent()' Null Pointer Dereference Denial of Service Vulnerability
- CVE-2010-2960: The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel 220.127.116.11 and earlier expects that a certain parent session keyring exists, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function.
- OSVDB ID: 67775: Linux Kernel security/keys/keyctl.c keyctl_session_to_parent() Function NULL Dereference DoS
- OSVDB ID: 72986: Linux Kernel security/keys/process_keys.c key_replace_session_keyring() NULL Dereference Local DoS
- SA41263: Linux Kernel keyctl_session_to_parent() NULL Pointer Dereference Vulnerability
- SECTRACK ID: 1024384: Linux Kernel Null Pointer Dereference in keyctl_session_to_parent() May Let Local Users Gain Elevated Privileges
- SUSE-SA:2010:046: openSUSE 11.2 kernel security update
- SUSE-SA:2010:047: openSUSE 11.3 kernel security update
- SUSE-SA:2010:050: Linux Kernel security update
- SUSE-SA:2011:007: Linux realtime kernel security update
- Linux Kernel 2.6.0
Sep 02, 2010
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.