CVE-2009-3623 describes a denial-of-service vulnerability in the Linux kernel's nfsd4 subsystem, specifically affecting versions prior to 2.6.31.2. A flaw in the lookup_cb_cred function allows remote attackers to trigger a NULL pointer dereference and system crash by sending a crafted NFSv4 mount request with the AUTH_NULL authentication flavor. This vulnerability has a CVSS score of 7.8, indicating high severity due to its remote attack vector, low complexity, and complete availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.6.31.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
2.6.0CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* | ||
2.6.1CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:* | ||
2.6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:* | ||
2.6.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.