Evolution iCalendar Two Buffer Overflow Vulnerabilities - Secunia Advisories - Vulnerability Information

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Evolution iCalendar Two Buffer Overflow Vulnerabilities

Secunia Advisory:

SA30298

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Release Date:

2008-06-04

Last Update:

2009-05-27

Popularity:

3,813 views

Critical:

Highly critical

Impact:

System access

Where:

From remote

Solution Status:

Vendor Patch

Software:

GNOME Evolution 2.x
Novell Evolution 2.x

Binary Analysis:

BA487 :: Available for 1 Credit

BA489 :: Available for 1 Credit

Secunia CVSS-2 Score:

Available in Secunia business solutions

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Advisory Content (Page 1 of 3)

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Description:
Secunia Research has discovered two vulnerabilities in Evolution, which can be exploited by malicious people to compromise a user's system.

1) A boundary error exists when parsing timezone strings contained within iCalendar attachments. This can be exploited to overflow a static buffer via an overly long timezone string.

Successful exploitation allows execution of arbitrary code, but requires that the ITip Formatter plugin is disabled.

2) A boundary error exists when replying to an iCalendar request while in calendar view. This can be exploited to cause a heap-based buffer overflow via an overly long "DESCRIPTION" property included in an iCalendar attachment.

Successful exploitation allows execution of arbitrary code, but requires that the user accepts the iCalendar request and replies to it from the "Calendars" window.

The vulnerabilities are confirmed in version 2.22.1. Other versions may also be affected.

Change Page:
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