Double free vulnerability in the krb5_recvauth function in MIT Kerberos 5 (krb5) 1.4.1…
Priority MEDIUM 55CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.
Summary
Double free vulnerability in the krb5_recvauth function in MIT Kerberos 5 (krb5) 1.4.1 and earlier allows remote attackers to execute arbitrary code via certain error conditions.
Why it matters now
EPSS 0.11012 95th 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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* | up to 1.4.1 | Vulnerable | moos-ivp |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | before 10.4.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:* | before 10.4.2 | Vulnerable | Apple |
| cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* | 3.1 | Vulnerable | Debian |
- cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* Versions up to 1.4.1 Vulnerable ·moos-ivp
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.4.2 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:* Versions before 10.4.2 Vulnerable ·Apple
- cpe:2.3:o:debian:debian_linux:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Debian
Remediation
Red Hat 2 advisories
- RHSA-2005:567 Released 2005-07-12 · Red Hat rating Importantkrb5 security update
- Red Hat Enterprise Linux AS version 4 krb5-1.3.4-17, krb5-devel-1.3.4-17, krb5-devel-1.3.4-17.i386 +14
- Red Hat Enterprise Linux Desktop version 4 krb5-1.3.4-17, krb5-devel-1.3.4-17, krb5-devel-1.3.4-17.i386 +6
- Red Hat Enterprise Linux ES version 4 krb5-1.3.4-17, krb5-devel-1.3.4-17, krb5-devel-1.3.4-17.i386 +10
- Red Hat Enterprise Linux WS version 4 krb5-1.3.4-17, krb5-devel-1.3.4-17, krb5-devel-1.3.4-17.i386 +10
- RHSA-2005:562 Released 2005-07-12 · Red Hat rating Criticalkrb5 security update
- Red Hat Desktop version 3 krb5-1.2.7-47, krb5-devel-1.2.7-47, krb5-devel-1.2.7-47.i386 +6
- Red Hat Enterprise Linux AS version 3 krb5-1.2.7-47, krb5-devel-1.2.7-47, krb5-devel-1.2.7-47.i386 +14
- Red Hat Enterprise Linux ES version 3 krb5-1.2.7-47, krb5-devel-1.2.7-47, krb5-devel-1.2.7-47.i386 +10
- Red Hat Enterprise Linux WS version 3 krb5-1.2.7-47, krb5-devel-1.2.7-47, krb5-devel-1.2.7-47.i386 +10
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2005:562 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2005:562 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2005:567 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2005:567 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2005:562 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2005:567 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2005:562 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2005:567 |
Timeline
- 2026-10-02 Threatist record created from CVE-2005-1689
- 2026-10-03 Alias added: GHSA-8mfg-j523-2x92
References
Patch 4
Advisory 11
Sources
- CVE-2005-1689 · CVE Program
- CVE-2005-1689 · NVD
- FIRST EPSS
- GHSA-8mfg-j523-2x92 · GitHub Advisory Database · CC BY 4.0
- CVE-2005-1689 · Red Hat security data · CC BY 4.0
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