CVE-2011-4081

low-risk
Published 2012-05-24

crypto/ghash-generic.c in the Linux kernel before 3.1 allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact by triggering a failed or missing ghash_setkey function call, followed by a (1) ghash_update function call or (2) ghash_final function call, as demonstrated by a write operation on an AF_ALG socket.

Do I need to act?

-
0.06% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
Mailing List http://www.openwall.com/lists/oss-security/2011/10/27/2
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=749475
Exploit https://github.com/torvalds/linux/commit/7ed47b7d142ec99ad6880bbbec51e9f12b3af74...
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
Mailing List http://www.openwall.com/lists/oss-security/2011/10/27/2
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=749475
Exploit https://github.com/torvalds/linux/commit/7ed47b7d142ec99ad6880bbbec51e9f12b3af74...
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal