What’s Vulnerable › Vulnerabilities

CVE-2010-2960

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-09-08 · updated 2026-06-16
• Weakness: CWE-476

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.

Affected products

• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
• Linux kernel: before 2.6.35.4 — fixed in 2.6.35.4
• Suse Linux Enterprise Desktop: 11-sp1
• SUSE Linux Enterprise: 11-sp1

How to fix

Upgrade to a fixed version: Linux kernel 2.6.35.4. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://secunia.com/advisories/41263
• http://securitytracker.com/id?1024384
• http://twitter.com/taviso/statuses/22777866582
• http://www.openwall.com/lists/oss-security/2010/09/02/1
• http://www.securityfocus.com/bid/42932
• http://www.ubuntu.com/usn/USN-1000-1
• http://www.vupen.com/english/advisories/2011/0298
• https://bugzilla.redhat.com/show_bug.cgi?id=627440
• https://exchange.xforce.ibmcloud.com/vulnerabilities/61557
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html

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