Description
CRLF injection vulnerability in SquirrelMail 1.4.0 to 1.4.5 allows remote attackers to inject arbitrary IMAP commands via newline characters in the mailbox parameter of the sqimap_mailbox_select command, aka "IMAP injection."
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 ↗Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | squirrelmail | 1.4.6-5.el4 | RHSA-2006:0283 |
| RHEL 3 | squirrelmail | 1.4.6-5.el3 | RHSA-2006:0283 |
Advisories 2
- DSA-988-1 squirrelmail - several Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2006:0283 Red Hat Security Advisory: squirrelmail security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- MDKSA-2006:049 vendor-advisory
- RHSA-2006:0283 vendor-advisory
- 19176 third-party-advisory
- http://www.squirrelmail.org/security/issue/2006-02-15
- FEDORA-2006-133 vendor-advisory
- SUSE-SR:2006:005 vendor-advisory
- 20210 third-party-advisory
- ADV-2006-0689 vdb-entry
- 18985 third-party-advisory
- oval:org.mitre.oval:def:11470 vdb-entry signature
- 19205 third-party-advisory
- squirrelmail-mailbox-imap-injection(24849) vdb-entry
- 19960 third-party-advisory
- 16756 vdb-entry
- 19130 third-party-advisory
- DSA-988 vendor-advisory
- 19131 third-party-advisory
- GLSA-200603-09 vendor-advisory
- 1015662 vdb-entry