Description
A certain Red Hat patch for SquirrelMail 1.4.8 sets the same SQMSESSID cookie value for all sessions, which allows remote authenticated users to access other users' folder lists and configuration data in opportunistic circumstances by using the standard webmail.php interface. NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-3663.
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.
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 1
- RHSA-2009:0057 Red Hat Security Advisory: squirrelmail security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- RHSA-2009:0057 vendor-advisory
- 33611 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=480488
- https://bugzilla.redhat.com/show_bug.cgi?id=480224
- oval:org.mitre.oval:def:10366 vdb-entry signature
- squirrelmail-sessionid-session-hijacking(48115) vdb-entry
- SUSE-SR:2009:004 vendor-advisory
- 1021611 vdb-entry
- 33354 vdb-entry