Buffer overflow in PAM SMB module (pam_smb) 1.1.6 and earlier, when authenticating to a…
Priority MEDIUM 55Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
Buffer overflow in PAM SMB module (pam_smb) 1.1.6 and earlier, when authenticating to a remote service, allows remote attackers to execute arbitrary code.
Why it matters now
EPSS 0.26975 98th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
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 · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dave_airlie:pam_smb:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.2:*:*:*:*:*:*:* | 1.1.2 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.3:*:*:*:*:*:*:* | 1.1.3 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.4:*:*:*:*:*:*:* | 1.1.4 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.5:*:*:*:*:*:*:* | 1.1.5 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:1.1.6:*:*:*:*:*:*:* | 1.1.6 | Vulnerable | Dave Airlie |
| cpe:2.3:a:dave_airlie:pam_smb:2.0_rc4:*:*:*:*:*:*:* | 2.0_rc4 | Vulnerable | Dave Airlie |
| cpe:2.3:a:redhat:pam_smb:1.1.6-2:*:i386:*:*:*:*:* | 1.1.6-2 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:pam_smb:1.1.6-2:*:ia64:*:*:*:*:* | 1.1.6-2 | Vulnerable | Red Hat |
- cpe:2.3:a:dave_airlie:pam_smb:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.2:*:*:*:*:*:*:* Versions 1.1.2 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.4:*:*:*:*:*:*:* Versions 1.1.4 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.5:*:*:*:*:*:*:* Versions 1.1.5 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:1.1.6:*:*:*:*:*:*:* Versions 1.1.6 Vulnerable ·Dave Airlie
- cpe:2.3:a:dave_airlie:pam_smb:2.0_rc4:*:*:*:*:*:*:* Versions 2.0_rc4 Vulnerable ·Dave Airlie
- cpe:2.3:a:redhat:pam_smb:1.1.6-2:*:i386:*:*:*:*:* Versions 1.1.6-2 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:pam_smb:1.1.6-2:*:ia64:*:*:*:*:* Versions 1.1.6-2 Vulnerable ·Red Hat
Remediation
Red Hat 2 advisories
- RHSA-2003:261 Released 2003-08-26 · Red Hat rating Important: Updated pam_smb packages fix remote buffer overflow.
- Red Hat Linux 7.2
- Red Hat Linux 7.3
- Red Hat Linux 8.0
- Red Hat Linux 9
- RHSA-2003:262 Released 2003-08-26 · Red Hat rating Importantpam_smb security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2003:262 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2003:262 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2003:262 |
| Red Hat Linux 7.2 | Fixed | RHSA-2003:261 |
| Red Hat Linux 7.3 | Fixed | RHSA-2003:261 |
| Red Hat Linux 8.0 | Fixed | RHSA-2003:261 |
| Red Hat Linux 9 | Fixed | RHSA-2003:261 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2003:262 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0686
- 2026-10-03 Alias added: GHSA-q9q7-v36f-jr8q
References
Sources
- CVE-2003-0686 · CVE Program
- CVE-2003-0686 · NVD
- FIRST EPSS
- GHSA-q9q7-v36f-jr8q · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0686 · Red Hat security data · CC BY 4.0
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