76639 : Linux Kernel NULL Pointer Dereference ghash Algorithm Local DoS
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Timeline

Disclosure Date
2011-10-20

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2011-4081" target="_blank">CVE</a>)</em> : 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.

Classification

Location: Local Access Required, Context Dependent
Impact: Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, a fix has been released in the GIT repository to address this vulnerability. Check the vendor advisory or solution in the references section.

Products

Unknown or Incomplete

References

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.9
Source: nvd.nist.gov | Generated: 2012-05-25 | Disagree?

Access_vector_0 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_2

Comments

No Comments.

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