First published: Fri Oct 05 2007(Updated: )
Integer overflow in the build_range function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values, which triggers a heap-based buffer overflow.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
X.Org X Font Server | =1.0.1 | |
X.Org X Font Server | =1.0.2 | |
X.Org X Font Server | =1.0.4 |
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CVE-2007-4568 is considered to have a high severity due to its potential to allow arbitrary code execution.
To fix CVE-2007-4568, upgrade the X.Org X Font Server to version 1.0.5 or later.
CVE-2007-4568 can be exploited through crafted QueryXBitmaps and QueryXExtents protocol requests.
CVE-2007-4568 affects X.Org X Font Server versions 1.0.1, 1.0.2, and 1.0.4.
The main vulnerability in CVE-2007-4568 is an integer overflow in the build_range function leading to a heap-based buffer overflow.