Double free vulnerability in the authentication and authentication token alteration code…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- 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-119 and the CVSS impact.
Summary
Double free vulnerability in the authentication and authentication token alteration code in PAM-MySQL 0.6.x before 0.6.2 and 0.7.x before 0.7pre3 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted passwords, which lead to a double free of a pointer that was created by the pam_get_item function. NOTE: this issue only occurs in certain configurations in which there are multiple PAM modules, PAM-MySQL is not evaluated first, and there are no requisite modules before PAM-MySQL.
Why it matters now
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:pam-mysql:pam-mysql:0.1:*:*:*:*:*:*:* | 0.1 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.2:*:*:*:*:*:*:* | 0.2 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.3:*:*:*:*:*:*:* | 0.3 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.4:*:*:*:*:*:*:* | 0.4 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.4.7:*:*:*:*:*:*:* | 0.4.7 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.5:*:*:*:*:*:*:* | 0.5 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.6:*:*:*:*:*:*:* | 0.6 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.7_pre1:*:*:*:*:*:*:* | 0.7_pre1 | Vulnerable | Pam-mysql |
| cpe:2.3:a:pam-mysql:pam-mysql:0.7_pre2:*:*:*:*:*:*:* | 0.7_pre2 | Vulnerable | Pam-mysql |
- cpe:2.3:a:pam-mysql:pam-mysql:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.4.7:*:*:*:*:*:*:* Versions 0.4.7 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.6:*:*:*:*:*:*:* Versions 0.6 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.7_pre1:*:*:*:*:*:*:* Versions 0.7_pre1 Vulnerable ·Pam-mysql
- cpe:2.3:a:pam-mysql:pam-mysql:0.7_pre2:*:*:*:*:*:*:* Versions 0.7_pre2 Vulnerable ·Pam-mysql
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-0056
- 2026-10-03 Alias added: GHSA-w6xf-p38w-6xgp
References
Sources
- CVE-2006-0056 · CVE Program
- CVE-2006-0056 · NVD
- FIRST EPSS
- GHSA-w6xf-p38w-6xgp · GitHub Advisory Database · CC BY 4.0
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