CVE-2010-2960
The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel 2.6.35.4 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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel 2.6.35.4 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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.51% probability · 42th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · canonical/ubuntu linux · suse/suse linux enterprise desktop · suse/suse linux enterprise server
- Source
- security@ubuntu.com
References
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/41263Broken Link
- http://securitytracker.com/id?1024384Third Party Advisory, VDB Entry
- http://twitter.com/taviso/statuses/22777866582Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/09/02/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/42932Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
- http://www.vupen.com/english/advisories/2011/0298Broken Link
- https://bugzilla.redhat.com/show_bug.cgi?id=627440Exploit, Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61557Third Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/41263Broken Link
- http://securitytracker.com/id?1024384Third Party Advisory, VDB Entry
- http://twitter.com/taviso/statuses/22777866582Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/09/02/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/42932Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
- http://www.vupen.com/english/advisories/2011/0298Broken Link
- https://bugzilla.redhat.com/show_bug.cgi?id=627440Exploit, Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/61557Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.