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CVE-2009-1388
The ptrace_start function in kernel/ptrace.c in the Linux kernel 2.6.18 does not properly handle simultaneous execution of the do_coredump…
- 5.5MediumCVSS base score
- 0.36%Exploitation in 30 daysEPSS · top 69% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The ptrace_start function in kernel/ptrace.c in the Linux kernel 2.6.18 does not properly handle simultaneous execution of the do_coredump function, which allows local users to cause a denial of service (deadlock) via vectors involving the ptrace system call and a coredumping thread.
Timeline
ID reserved
By redhat
- 2 months later
· 2 months 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 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.36% · top 69% of all CVEs (12 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
n/a
- affected n/a
References
References14
- 36131 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 37471 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:8680 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1193 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://bugzilla.redhat.com/attachment.cgi?id=346615 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=504263 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/attachment.cgi?id=346742 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 55679 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- oval:org.mitre.oval:def:8625 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 35559 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20090702 CVE-2009-1388 kernel: do_coredump() vs ptrace_start() deadlock (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- ADV-2009-3316 (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-2009-1386 (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-2009-1388)Record last updated .