pam_sm_authenticate in pam_pgsql.c in libpam-pgsql 0.6.3 does not properly consider…
Priority LOW 21CWE-287Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
pam_sm_authenticate in pam_pgsql.c in libpam-pgsql 0.6.3 does not properly consider operator precedence when evaluating the success of a pam_get_pass function call, which allows local users to gain privileges via a SIGINT signal when this function is executing, as demonstrated by a CTRL-C sequence at a sudo password prompt in an "auth sufficient pam_pgsql.so" configuration.
Why it matters now
EPSS 0.00324 25th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libpam-pgsql:libpam-pgsql:0.6.3:*:*:*:*:*:*:* | 0.6.3 | Vulnerable | Libpam-pgsql |
- cpe:2.3:a:libpam-pgsql:libpam-pgsql:0.6.3:*:*:*:*:*:*:* Versions 0.6.3 Vulnerable ·Libpam-pgsql
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-2516
- 2026-10-03 Alias added: GHSA-f5j9-mgc7-gfx4
References
Sources
- CVE-2008-2516 · CVE Program
- CVE-2008-2516 · NVD
- FIRST EPSS
- GHSA-f5j9-mgc7-gfx4 · GitHub Advisory Database · CC BY 4.0
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