pam_krb5 2.2.14 through 2.3.4, as used in Red Hat Enterprise Linux (RHEL) 5, generates…
Priority LOW 28CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.
Summary
pam_krb5 2.2.14 through 2.3.4, as used in Red Hat Enterprise Linux (RHEL) 5, generates different password prompts depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Why it matters now
EPSS 0.0289 86th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* | 5 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:*:client:*:*:*:*:* | 5 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:*:client_workstation:*:*:*:*:* | 5 | Running on | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5:*:server:*:*:*:*:* | 5 | Running on | Red Hat |
| cpe:2.3:a:eyrie:pam-krb5:2.2.14:*:*:*:*:*:*:* | 2.2.14 | Vulnerable | Eyrie |
| cpe:2.3:a:eyrie:pam-krb5:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | Eyrie |
| cpe:2.3:a:eyrie:pam-krb5:2.3.4:*:*:*:*:*:*:* | 2.3.4 | Vulnerable | Eyrie |
- cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* Versions 5 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:*:client:*:*:*:*:* Versions 5 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:*:client_workstation:*:*:*:*:* Versions 5 Running on ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5:*:server:*:*:*:*:* Versions 5 Running on ·Red Hat
- cpe:2.3:a:eyrie:pam-krb5:2.2.14:*:*:*:*:*:*:* Versions 2.2.14 Vulnerable ·Eyrie
- cpe:2.3:a:eyrie:pam-krb5:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Eyrie
- cpe:2.3:a:eyrie:pam-krb5:2.3.4:*:*:*:*:*:*:* Versions 2.3.4 Vulnerable ·Eyrie
Remediation
Red Hat 1 advisory
- RHSA-2010:0258 Released 2010-03-29 · Red Hat rating Lowpam_krb5 security and bug fix update
- Red Hat Enterprise Linux (v. 5 server) pam_krb5-2.2.14-15, pam_krb5-2.2.14-15.i386, pam_krb5-2.2.14-15.ia64 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) pam_krb5-2.2.14-15, pam_krb5-2.2.14-15.i386
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0258 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0258 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1384
- 2026-10-03 Alias added: GHSA-7qjh-v92x-xj4g
References
More Eyrie Pam-krb5 vulnerabilities
- TI-2009-00340 Russ Allbery pam-krb5 before 3.13, when linked against MIT Kerberos, does not properly… CVSS 2.0MEDIUM 6.2
- TI-2009-00341 Russ Allbery pam-krb5 before 3.13, as used by libpam-heimdal, su in Solaris 10, and other… CVSS 2.0MEDIUM 4.6
Sources
- CVE-2009-1384 · CVE Program
- CVE-2009-1384 · NVD
- FIRST EPSS
- GHSA-7qjh-v92x-xj4g · GitHub Advisory Database · CC BY 4.0
- CVE-2009-1384 · 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