CVE-2009-3623

Linux Kernel < 2.6.31.2 - Denial of Service via NFSv4 AUTH_NULL Credentials Cache Access

Title source: llm
STIX 2.1

Description

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.

References (8)

Core 8
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-864-1
Mailing List mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125618753029631&w=2
Mailing List mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125624036516377&w=2
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=530269

Scores

EPSS 0.0347
EPSS Percentile 87.6%

Details

CWE
CWE-287
Status published
Products (50)
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1
linux/linux_kernel 2.6.2
linux/linux_kernel 2.6.3
linux/linux_kernel 2.6.4
linux/linux_kernel 2.6.5
linux/linux_kernel 2.6.6
linux/linux_kernel 2.6.7
linux/linux_kernel 2.6.8
linux/linux_kernel 2.6.8.1
... and 40 more
Published Oct 30, 2009
Tracked Since Feb 18, 2026