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Evolution: Format string vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200508-12 / evolution
Release Date August 23, 2005
Latest Revision August 23, 2005: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
mail-client/evolution < 2.2.3-r3 >= 2.2.3-r3 All supported architectures

Related bugreports: #102051


Evolution is vulnerable to format string vulnerabilities which may result in remote execution of arbitrary code.

2.  Impact Information


Evolution is a GNOME groupware application.


Ulf Harnhammar discovered that Evolution is vulnerable to format string bugs when viewing attached vCards and when displaying contact information from remote LDAP servers or task list data from remote servers (CAN-2005-2549). He also discovered that Evolution fails to handle special calendar entries if the user switches to the Calendars tab (CAN-2005-2550).


An attacker could attach specially crafted vCards to emails or setup malicious LDAP servers or calendar entries which would trigger the format string vulnerabilities when viewed or accessed from Evolution. This could potentially result in the execution of arbitrary code with the rights of the user running Evolution.

3.  Resolution Information


There is no known workaround at this time.


All Evolution users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/evolution-2.2.3-r3"

4.  References


Page updated August 23, 2005

Summary: This is a Gentoo Linux Security Advisory

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