USN-27-1: libxpm4 vulnerability
Publication date
18 November 2004
Overview
libxpm4 vulnerability
Releases
Details
Chris Evans discovered several stack overflows in the versions of
libXpm shipped by X.Org, XFree86, and LessTif. These overflows
were fixed in the Warty development tree before its release.
Mathieu Herrb of OpenBSD subsequently discovered that the original
patch was insufficient to address these overflows, and thus the
version of libxpm4 shipped with Warty is still vulnerable to the
original overflows.
These overflows do not allow privilege escalation through the X
server; the overflows are in a client-side library, allowing
arbitrary code execution with the privileges of the user
viewing a malicious pixmap.
Chris Evans discovered several stack overflows in the versions of
libXpm shipped by X.Org, XFree86, and LessTif. These overflows
were fixed in the Warty development tree before its release.
Mathieu Herrb of OpenBSD subsequently discovered that the original
patch was insufficient to address these overflows, and thus the
version of libxpm4 shipped with Warty is still vulnerable to the
original overflows.
These overflows do not allow privilege escalation through the X
server; the overflows are in a client-side library, allowing
arbitrary code execution with the privileges of the user
viewing a malicious pixmap.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 4.10 warty | libxpm4 – | ||
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