Russ Allbery pam-krb5 before 3.13, as used by libpam-heimdal, su in Solaris 10, and other software, does not properly handle calls to pam_setcred when running setuid, which allows local users to overwrite and change the ownership of arbitrary files by setting the KRB5CCNAME environment variable, and then launching a setuid application that performs certain pam_setcred operations.
Conclusion & alert: CVE-2009-0361 is rated Low Risk (25/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.07%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-17 | 0.04% | 0.07% | +0.03% |
| 2 | 2023-03-07 | 1.55% | 0.04% | -1.50% |
| 3 | 2022-02-04 | — | 1.55% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2009-0361 not yet assigned priority: Debian including 1 source packages (libpam-krb5), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-0361 |
gentoo
|
high | CVE-2009-0361: 2 GLSA(s) (200903-39, 201412-08), 27 atom(s) (app-antivirus/bitdefender-console, app-arch/gzip, …); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-0361 |
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2009-0361 |
ubuntu
|
low | CVE-2009-0361 low priority: Ubuntu including 2 source packages (libpam-heimdal, libpam-krb5), 22 status rows across 11 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): released 10, ignored 6, not-affected 5, DNE 1. | https://ubuntu.com/security/CVE-2009-0361 |
Not vulnerable. This issue did not affect the versions of the pam_krb5 package, as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| eyrie | pam-krb5 | <= 3.12 | cpe:2.3:a:eyrie:pam-krb5:*:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.0 | cpe:2.3:a:eyrie:pam-krb5:3.0:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.1 | cpe:2.3:a:eyrie:pam-krb5:3.1:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.2 | cpe:2.3:a:eyrie:pam-krb5:3.2:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.3 | cpe:2.3:a:eyrie:pam-krb5:3.3:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.4 | cpe:2.3:a:eyrie:pam-krb5:3.4:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.5 | cpe:2.3:a:eyrie:pam-krb5:3.5:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.6 | cpe:2.3:a:eyrie:pam-krb5:3.6:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.7 | cpe:2.3:a:eyrie:pam-krb5:3.7:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.8 | cpe:2.3:a:eyrie:pam-krb5:3.8:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.9 | cpe:2.3:a:eyrie:pam-krb5:3.9:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.10 | cpe:2.3:a:eyrie:pam-krb5:3.10:*:*:*:*:*:*:* |
| eyrie | pam-krb5 | 3.11 | cpe:2.3:a:eyrie:pam-krb5:3.11:*:*:*:*:*:*:* |