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Evolution Shared Memo Categories Format String Vulnerability Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA24234  
Release Date: 2007-03-21

Critical:
Moderately critical
Impact: DoS
System access
Where: From remote
Solution Status: Unpatched

Software:GNOME Evolution 2.x
Novell Evolution 2.x

CVE reference:CVE-2007-1002 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
Secunia Research has discovered a vulnerability in Evolution, which potentially can be exploited by malicious people to compromise a vulnerable system.

A format string error in the "write_html()" function in calendar/gui/e-cal-component-memo-preview.c when displaying a memo's categories can potentially be exploited to execute arbitrary code via a specially crafted shared memo containing format specifiers.

Successful exploitation requires that the user opens a shared memo in their mailbox, clicks on "Accept", and views the memo under the "Memo" tab.

NOTE: The categories are not displayed in the mailbox view of a shared memo.

The vulnerability is confirmed in version 2.8.2.1. Other versions may also be affected.

Solution:
Do not open untrusted shared memos.

Various Linux vendors will issue patched versions soon.

Provided and/or discovered by:
Ulf Harnhammar, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2007-44/



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

6 Related Secunia Security Advisories

1. Evolution Encrypted Message Format String Vulnerability
2. Evolution "SEQUENCE" Array Indexing Vulnerability
3. Evolution "--status-fd" Incorrect GnuPG Usage
4. GNOME Evolution Email Handling Denial of Service
5. GNOME Evolution Multiple Format String Vulnerabilities
6. Evolution camel-lock-helper Integer Overflow Vulnerability


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