CVE-2009-3547
Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer…
- 7.0HighCVSS base score
- 4.9%Exploitation in 30 daysEPSS · top 7.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 5Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 5 Exploit-DB entries for it.
Show the exploits5
Exploit-DB5 entries
- Linux Kernel 2.6.10 < 2.6.31.5 - 'pipe.c' Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 40812local, linuxpublished 16 Dec 2013Not verified
- Linux Kernel 2.6.32 - 'pipe.c' Local Privilege Escalation (4) (Exploit-DB entry) (opens in a new tab)
EDB-ID 10018local, linuxpublished 12 Nov 2009Verified
- Linux Kernel 2.4.1 < 2.4.37 / 2.6.1 < 2.6.32-rc5 - 'pipe.c' Local Privilege Escalation (3) (Exploit-DB entry) (opens in a new tab)
EDB-ID 9844local, linuxpublished 5 Nov 2009Verified
- Linux Kernel 2.6.0 < 2.6.31 - 'pipe.c' Local Privilege Escalation (1) (Exploit-DB entry) (opens in a new tab)
EDB-ID 33321local, linuxpublished 3 Nov 2009Verified
- Linux Kernel 2.6.x - 'pipe.c' Local Privilege Escalation (2) (Exploit-DB entry) (opens in a new tab)
EDB-ID 33322local, linuxpublished 3 Nov 2009Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 30 days later
· 30 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.9% · top 7.8% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.0.
Affected products
n/a
- affected n/a
References
29
- oval:org.mitre.oval:def:11513 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- RHSA-2009:1672 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20100625 VMSA-2010-0010 ESX 3.5 third party update for Service Console kernel (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 36901 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ad3960243e55320d74195fb85c975e0a8cc4466c (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1540 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-864-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 38794 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updates (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [linux-kernel] 20091021 Re: [PATCH v4 1/1]: fs: pipe.c null pointer dereference + really sign off + unmangled diffs (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SA:2010:001 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2009:1541 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- MDVSA-2009:329 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 37351 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SA:2009:056 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SA:2010:012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- oval:org.mitre.oval:def:7608 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- [oss-security] 20091103 CVE-2009-3547 kernel: fs: pipe.c null pointer dereference (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2009:1548 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 38834 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [linux-kernel] 20091014 fs/pipe.c null pointer dereference (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2009:1550 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:9327 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- SUSE-SA:2009:054 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=530490 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 38017 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2009-11038 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- ADV-2010-0528 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-3529 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-3547)Record last updated .