CVE-2001-0955

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2001-09-22 · updated 2026-06-16

Description

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.

Affected products

Xfree86 Project X11R6: 4.0, 4.0.1, 4.0.3

References

http://cvsweb.xfree86.org/cvsweb/xc/programs/Xserver/fb/fbglyph.c
http://marc.info/?l=bugtraq&m=100776624224549&w=2
http://marc.info/?l=bugtraq&m=100784290015880&w=2
http://marc.info/?l=vuln-dev&m=100118958310463&w=2
http://www.securityfocus.com/bid/3657
http://www.securityfocus.com/bid/3663
http://www.xfree86.org/4.2.0/RELNOTES2.html#2
http://www.xfree86.org/security/
https://exchange.xforce.ibmcloud.com/vulnerabilities/7673
https://exchange.xforce.ibmcloud.com/vulnerabilities/7683
http://cvsweb.xfree86.org/cvsweb/xc/programs/Xserver/fb/fbglyph.c
http://marc.info/?l=bugtraq&m=100776624224549&w=2

Get alerted when CVE-2001-0955 or the next vulnerability affects your stack