CVE-2011-4081

Public Exploit

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2011/10/27/2 mailing list third party advisory patch
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ed47b7d142ec99ad6880bbbec51e9f12b3af74c
https://bugzilla.redhat.com/show_bug.cgi?id=749475 issue tracking third party advisory patch
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 mailing list patch vendor advisory
https://github.com/torvalds/linux/commit/7ed47b7d142ec99ad6880bbbec51e9f12b3af74c exploit third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2011-4081?
CVE-2011-4081 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4081?
To fix CVE-2011-4081, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4081 being actively exploited in the wild?
It is possible that CVE-2011-4081 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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