Description
Session fixation vulnerability in SquirrelMail before 1.4.18 allows remote attackers to hijack web sessions via a crafted cookie.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | squirrelmail | 2:1.4.15-4+lenny1 | DSA-1802-1 |
| Debian 4.0 | squirrelmail | 2:1.4.9a-4 | DSA-1802-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | squirrelmail | 1.4.8-5.el5_2.3 | RHSA-2009:0057 |
| RHEL 4 | squirrelmail | 1.4.8-5.el4_7.3 | RHSA-2009:0057 |
| RHEL 3 | squirrelmail | 1.4.8-9.el3 | RHSA-2009:0057 |
Advisories 2
- DSA-1802-1 squirrelmail - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2009:0057 Red Hat Security Advisory: squirrelmail security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- APPLE-SA-2010-06-15-1 vendor-advisory
- MDVSA-2009:110 vendor-advisory
- 34916 vdb-entry
- http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail/branches/SM-1_4-STABLE/squirrelmail/doc/ChangeLog
- ADV-2010-1481 vdb-entry
- FEDORA-2009-4870 vendor-advisory
- 35140 third-party-advisory
- http://squirrelmail.svn.sourceforge.net/viewvc/squirrelmail?view=rev&revision=13676
- https://bugzilla.redhat.com/show_bug.cgi?id=500358
- FEDORA-2009-4880 vendor-advisory
- http://support.apple.com/kb/HT4188
- 40220 third-party-advisory
- http://www.squirrelmail.org/security/issue/2009-05-11
- ADV-2009-1296 vdb-entry
- 35052 third-party-advisory
- FEDORA-2009-4875 vendor-advisory
- 35073 third-party-advisory
- squirrelmail-baseuri-session-hijacking(50462) vdb-entry
- oval:org.mitre.oval:def:10107 vdb-entry signature
- DSA-1802 vendor-advisory