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CVE-2015-3238
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords,…
Medium6.5EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% 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 6.5.
Weakness
Affected products
n/a
- affected n/a
References (13)
- FEDORA-2015-10830 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2015:1640 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20150625 Linux-PAM 1.2.1 released to address CVE-2015-3238 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1228571 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551 (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-201605-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- USN-2935-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2935-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2935-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2015-10848 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 75428 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/ (opens in a new tab)x_refsource_MISCx_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-2015-3238)Record last updated .