GLSA 200708-08: SquirrelMail G/PGP plugin: Arbitrary code execution
| Severity: | high |
| Title: | SquirrelMail G/PGP plugin: Arbitrary code execution |
| Date: | 08/11/2007 |
| Bugs: | |
| ID: | 200708-08 |
Synopsis
Multiple vulnerabilities have been discovered in SquirrelMail, allowing for the remote execution of arbitrary code.Background
SquirrelMail is a webmail package written in PHP. It supports IMAP and SMTP protocols.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| mail-client/squirrelmail | < 1.4.10a-r2 | >= 1.4.10a-r2 | All supported architectures |
Description
The functions deletekey(), gpg_check_sign_pgp_mime() and gpg_recv_key() used in the SquirrelMail G/PGP encryption plugin do not properly escape user-supplied data.
Impact
An authenticated user could use the plugin to execute arbitrary code on the server, or a remote attacker could send a specially crafted e-mail to a SquirrelMail user, possibly leading to the execution of arbitrary code with the privileges of the user running the underlying web server. Note that the G/PGP plugin is disabled by default.
Workaround
Enter the SquirrelMail configuration directory (/usr/share/webapps/squirrelmail/version/htdocs/config), then execute the conf.pl script. Select the plugins menu, then select the gpg plugin item number in the "Installed Plugins" list to disable it. Press S to save your changes, then Q to quit.
Resolution
All SquirrelMail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/squirrelmail-1.4.10a-r2"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.