CVE-2009-3726 EXPLOIT
7.8
HIGH · CVSS 2.0 · EPSS 12% (pctl 96)
Patch early
A public exploit exists.
Description
The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.
Scoring
| CVSS | 7.8 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 12% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-399 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-11-09 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel < 2.6.31-rc4 - 'nfs4_proc_lock()' Denial of Service | 2009-10-15 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d953126a28f97ec965d23c69fd5795854c048f30
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://secunia.com/advisories/37909
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://secunia.com/advisories/40218
- http://www.debian.org/security/2010/dsa-2005
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:329
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://www.openwall.com/lists/oss-security/2009/11/05/1
- http://www.openwall.com/lists/oss-security/2009/11/05/4
- http://www.redhat.com/support/errata/RHSA-2009-1670.html
- http://www.redhat.com/support/errata/RHSA-2010-0474.html
- http://www.securityfocus.com/bid/36936
- http://www.spinics.net/linux/lists/linux-nfs/msg03357.html
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