Security readout for executives and security teams
This is a Linux authentication library flaw. A local user could use pam_unix behavior to learn whether usernames exist or make authentication hang by submitting an unusually large password. Business impact is mainly local denial of service and account discovery, not confirmed remote takeover. Exposure is most likely on Linux systems using vulnerable Linux-PAM pam_unix packages, especially older or unpatched distribution releases. The bundle does not provide precise CPEs or fixed package versions for every vendor. Treat as a routine but important Linux fleet hygiene issue. It is not evidenced as actively exploited here, but authentication components should be patched promptly on multi-user systems. Mitigation focus: Update Linux-PAM or distro pam packages using vendor advisories.; Confirm Linux-PAM is 1.2.1 or vendor-backported fixed build.; Prioritize shared Linux servers with local shell or SSH user access..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2015-3238 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=1228571CVE reference · x_refsource_CONFIRM
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551CVE reference · x_refsource_MISC
- GLSA-201605-05CVE reference · vendor-advisory, x_refsource_GENTOO
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.