[ GLSA 201001-08 ] SquirrelMail: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: SquirrelMail: Multiple vulnerabilities (GLSA 201001-08)
Severity: high
Exploitable: remote
Date: January 13, 2010
Bug(s): #269567, #270671
ID: 201001-08

Synopsis


Multiple vulnerabilities were found in SquirrelMail of which the worst
results in remote code execution.


Background


SquirrelMail is a standards-based webmail package written in PHP.


Affected Packages

Package: mail-client/squirrelmail
Vulnerable: < 1.4.19
Unaffected: >= 1.4.19
Architectures: All supported architectures


Description


Multiple vulnerabilities were found in SquirrelMail:

• Niels
  Teusink reported multiple input sanitation flaws in certain encrypted
  strings in e-mail headers, related to contrib/decrypt_headers.php,
  PHP_SELF and the query string (aka QUERY_STRING) (CVE-2009-1578).
  
• Niels Teusink also reported that the map_yp_alias() function
  in functions/imap_general.php does not filter shell metacharacters in a
  username and that the original patch was incomplete (CVE-2009-1381,
  CVE-2009-1579).
  
• Tomas Hoger discovered an unspecified session fixation
  vulnerability (CVE-2009-1580).
  
• Luc Beurton reported that functions/mime.php does not protect
  the application's content from Cascading Style Sheets (CSS) positioning
  in HTML e-mail messages (CVE-2009-1581).
  

Impact


The vulnerabilities allow remote attackers to execute arbitrary code
with the privileges of the user running the web server, to hijack web
sessions via a crafted cookie, to spoof the user interface and to
conduct Cross-Site Scripting and phishing attacks, via a specially
crafted message.


Workaround


There is no known workaround at this time.


Resolution


All SquirrelMail users should upgrade to the latest version: