Description
functions/imap_general.php in SquirrelMail, as used in Red Hat Enterprise Linux (RHEL) 4 and 5, does not properly handle 8-bit characters in passwords, which allows remote attackers to cause a denial of service (disk consumption) by making many IMAP login attempts with different usernames, leading to the creation of many preference files. NOTE: this issue exists because of an incorrect fix for CVE-2010-2813.
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 | 1.4.8-21.el5 | RHSA-2013:0126 |
Advisories 1
- RHSA-2013:0126 Red Hat Security Advisory: squirrelmail security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- 51730 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=814671
- [oss-security] 20120420 CVE-2012-2124 assignment notification: squirrelmail: CVE-2010-2813 not fixed in RHSA-2012:0103 mailing-list
- RHSA-2013:0126 vendor-advisory