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CVE-2012-2124

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2013-0126-01
Posted Jan 8, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0126-01 - SquirrelMail is a standards-based webmail package written in PHP. The SquirrelMail security update RHSA-2012:0103 did not, unlike the erratum text stated, correct the CVE-2010-2813 issue, a flaw in the way SquirrelMail handled failed log in attempts. A user preference file was created when attempting to log in with a password containing an 8-bit character, even if the username was not valid. A remote attacker could use this flaw to eventually consume all hard disk space on the target SquirrelMail server.

tags | advisory, remote, php
systems | linux, redhat
advisories | CVE-2012-2124
SHA-256 | cc679a3ad023b0523dcc97f4dcfa93f202141d41ac914dfa97ecbe558e26a81d
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