CVE-2001-0955: Buffer Overflow
First published: Sat Sep 22 2001(Updated: )
Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| XFree86 X Server | =4.0 | |
| XFree86 X Server | =4.0.1 | |
| XFree86 X Server | =4.0.3 |
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Reference Links
- http://www.securityfocus.com/bid/3663
- http://www.securityfocus.com/bid/3657
- http://www.xfree86.org/4.2.0/RELNOTES2.html#2
- http://www.xfree86.org/security/
- http://cvsweb.xfree86.org/cvsweb/xc/programs/Xserver/fb/fbglyph.c
- http://marc.info/?l=bugtraq&m=100784290015880&w=2
- http://marc.info/?l=vuln-dev&m=100118958310463&w=2
- http://marc.info/?l=bugtraq&m=100776624224549&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7683
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7673
Frequently Asked Questions
What is the severity of CVE-2001-0955?
CVE-2001-0955 is considered a critical vulnerability due to its potential for causing denial of service and privilege escalation.
How do I fix CVE-2001-0955?
To fix CVE-2001-0955, upgrade to XFree86 version 4.2.0 or later, which addresses the buffer overflow issues.
What software is affected by CVE-2001-0955?
CVE-2001-0955 affects versions of XFree86 prior to 4.2.0, specifically including versions 4.0, 4.0.1, and 4.0.3.
Can CVE-2001-0955 be exploited remotely?
Yes, CVE-2001-0955 can potentially be exploited remotely, especially through applications like KDE Konqueror.
What symptoms indicate an exploitation of CVE-2001-0955?
Symptoms of exploitation of CVE-2001-0955 may include service crashes or unexpected behavior in applications using the XFree86 server.
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