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CVE-2009-0887
Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration…
Medium6.6EPSS 1.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and earlier, when a configuration file contains non-ASCII usernames, might allow remote attackers to cause a denial of service, and might allow remote authenticated users to obtain login access with a different user's non-ASCII username, via a login attempt.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.6 | AV:L/AC:M/Au:S/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.6.
Weakness
Affected products
n/a
- affected n/a
References (9)
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?r1=1.9&%3Br2=1.10&%3Bview=patch (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2009:077 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [oss-security] 20090305 CVE Request -- pam (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2009-3204 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- linuxpam-pamstrtok-priv-escalation(49110) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://pam.cvs.sourceforge.net/viewvc/pam/Linux-PAM/libpam/pam_misc.c?view=log (opens in a new tab)x_refsource_CONFIRMx_transferred
- 34010 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2009-3231 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 34733 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2009-0887)Record last updated .