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CVE-2009-3623

CVE-2009-3623

EPSS 3.5%
The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.
Affected products
n/a · n/a

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References
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=80fc015bdfe1f5b870c1e1ee02d78e709523fee7http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=886e3b7fe6054230c89ae078a09565ed183ecc73http://marc.info/?l=oss-security&m=125618753029631&w=2http://marc.info/?l=oss-security&m=125624036516377&w=2https://bugzilla.redhat.com/show_bug.cgi?id=530269http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.2http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1http://www.ubuntu.com/usn/usn-864-1