Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.
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 · 28
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:postfix:postfix:2.3.0:*:*:*:*:*:*:* | 2.3.0 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.1:*:*:*:*:*:*:* | 2.3.1 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.2:*:*:*:*:*:*:* | 2.3.2 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.3:*:*:*:*:*:*:* | 2.3.3 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.4:*:*:*:*:*:*:* | 2.3.4 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.5:*:*:*:*:*:*:* | 2.3.5 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.6:*:*:*:*:*:*:* | 2.3.6 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.7:*:*:*:*:*:*:* | 2.3.7 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.8:*:*:*:*:*:*:* | 2.3.8 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.9:*:*:*:*:*:*:* | 2.3.9 | Vulnerable | Postfix |
- cpe:2.3:a:postfix:postfix:2.3.0:*:*:*:*:*:*:* Versions 2.3.0 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.1:*:*:*:*:*:*:* Versions 2.3.1 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.2:*:*:*:*:*:*:* Versions 2.3.2 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.3:*:*:*:*:*:*:* Versions 2.3.3 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.4:*:*:*:*:*:*:* Versions 2.3.4 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.5:*:*:*:*:*:*:* Versions 2.3.5 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.6:*:*:*:*:*:*:* Versions 2.3.6 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.7:*:*:*:*:*:*:* Versions 2.3.7 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.8:*:*:*:*:*:*:* Versions 2.3.8 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.9:*:*:*:*:*:*:* Versions 2.3.9 Vulnerable ·Postfix
Show 18 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:postfix:postfix:2.3.10:*:*:*:*:*:*:* | 2.3.10 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.11:*:*:*:*:*:*:* | 2.3.11 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.12:*:*:*:*:*:*:* | 2.3.12 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.13:*:*:*:*:*:*:* | 2.3.13 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.3.14:*:*:*:*:*:*:* | 2.3.14 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:* | 2.4.0 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:* | 2.4.2 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:* | 2.4.3 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:* | 2.4.4 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:* | 2.4.5 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:* | 2.4.6 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:* | 2.4.7 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.0:*:*:*:*:*:*:* | 2.5.0 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.1:*:*:*:*:*:*:* | 2.5.1 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:* | 2.5.2 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:* | 2.5.3 | Vulnerable | Postfix |
| cpe:2.3:a:postfix:postfix:2.6.0:*:*:*:*:*:*:* | 2.6.0 | Vulnerable | Postfix |
- cpe:2.3:a:postfix:postfix:2.3.10:*:*:*:*:*:*:* Versions 2.3.10 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.11:*:*:*:*:*:*:* Versions 2.3.11 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.12:*:*:*:*:*:*:* Versions 2.3.12 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.13:*:*:*:*:*:*:* Versions 2.3.13 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.3.14:*:*:*:*:*:*:* Versions 2.3.14 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:* Versions 2.4.3 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:* Versions 2.4.4 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:* Versions 2.4.5 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:* Versions 2.4.6 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:* Versions 2.4.7 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.0:*:*:*:*:*:*:* Versions 2.5.0 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·Postfix
- cpe:2.3:a:postfix:postfix:2.6.0:*:*:*:*:*:*:* Versions 2.6.0 Vulnerable ·Postfix
Remediation
Red Hat 1 advisory
- RHSA-2008:0839 Released 2008-08-14 · Red Hat rating Moderatepostfix security update
- Red Hat Desktop version 3 postfix-2:2.0.16-14.1.RHEL3, postfix-2:2.0.16-14.1.RHEL3.i386
- Red Hat Enterprise Linux (v. 5 server) postfix-2:2.3.3-2.1.el5_2, postfix-2:2.3.3-2.1.el5_2.i386, postfix-2:2.3.3-2.1.el5_2.ia64 +5
- Red Hat Enterprise Linux AS version 3 postfix-2:2.0.16-14.1.RHEL3, postfix-2:2.0.16-14.1.RHEL3.i386, postfix-2:2.0.16-14.1.RHEL3.ia64 +1
- Red Hat Enterprise Linux AS version 4 postfix-2:2.2.10-1.2.1.el4_7, postfix-2:2.2.10-1.2.1.el4_7.i386, postfix-2:2.2.10-1.2.1.el4_7.ia64 +5
- Red Hat Enterprise Linux Desktop (v. 5 client) postfix-2:2.3.3-2.1.el5_2, postfix-2:2.3.3-2.1.el5_2.i386, postfix-pflogsumm-2:2.3.3-2.1.el5_2 +1
- Red Hat Enterprise Linux Desktop version 4 postfix-2:2.2.10-1.2.1.el4_7, postfix-2:2.2.10-1.2.1.el4_7.i386, postfix-pflogsumm-2:2.2.10-1.2.1.el4_7 +1
- Red Hat Enterprise Linux ES version 3 postfix-2:2.0.16-14.1.RHEL3, postfix-2:2.0.16-14.1.RHEL3.i386, postfix-2:2.0.16-14.1.RHEL3.ia64
- Red Hat Enterprise Linux ES version 4 postfix-2:2.2.10-1.2.1.el4_7, postfix-2:2.2.10-1.2.1.el4_7.i386, postfix-2:2.2.10-1.2.1.el4_7.ia64 +3
- Red Hat Enterprise Linux WS version 3 postfix-2:2.0.16-14.1.RHEL3, postfix-2:2.0.16-14.1.RHEL3.i386, postfix-2:2.0.16-14.1.RHEL3.ia64
- Red Hat Enterprise Linux WS version 4 postfix-2:2.2.10-1.2.1.el4_7, postfix-2:2.2.10-1.2.1.el4_7.i386, postfix-2:2.2.10-1.2.1.el4_7.ia64 +3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2008:0839 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2008:0839 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-2936
- 2026-10-03 Alias added: GHSA-8739-vxjm-m9p4
References
Exploit 1
Advisory 10
More Postfix vulnerabilities
- TI-2011-01499 The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and… CVSS 2.0MEDIUM 6.8
- TI-2011-00345 The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x… CVSS 2.0MEDIUM 6.8
- TI-2023-28393 Postfix through 3.8.5 allows SMTP smuggling unless configured with… CVSS 3.1MEDIUM 5.3
- TI-2017-07491 Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2… CVSS 3.0HIGH 7.8
- TI-2026-32009 Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a… CVSS 3.1HIGH 7.5
- TI-2012-00748 Multiple SQL injection vulnerabilities in Postfix Admin (aka postfixadmin) before 2.3.5… CVSS 2.0MEDIUM 6.5
Sources
- CVE-2008-2936 · CVE Program
- CVE-2008-2936 · NVD
- FIRST EPSS
- GHSA-8739-vxjm-m9p4 · GitHub Advisory Database · CC BY 4.0
- CVE-2008-2936 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences