Bug 10951 - X Font Server DoS and Buffer Overflow Vulnerabilities
Summary: X Font Server DoS and Buffer Overflow Vulnerabilities
Status: CLOSED DUPLICATE of bug 10877
Alias: None
Product: Red Hat Linux
Classification: Retired
Component: XFree86
Version: 6.2
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: David Lawrence
QA Contact:
URL: http://www.securityfocus.com/bid/1111
Keywords: Security
Depends On:
TreeView+ depends on / blocked
Reported: 2000-04-20 22:10 UTC by p.hummel
Modified: 2008-05-01 15:37 UTC (History)
0 users

Clone Of:
Last Closed: 2000-05-08 14:18:31 UTC

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2001:071 high SHIPPED_LIVE : New updated XFree86 packages available 2001-05-24 04:00:00 UTC

Description p.hummel 2000-04-20 22:10:39 UTC
A denial of service exists in the X11 font server shipped with RedHat
Linux 6.x. Due to improper input validation, it is possible for any user
to crash the X fontserver. This will prevent the X server from functioning

Additional, similar problems exist in the stock xfs. Users can crash the
font server remotely, and potential exists for buffer overruns. The crux
of the problem stems from the font server being lax about verifying
network input. While no exploits exist, it is likely they are available in
private circles, and can result in remote root compromise.

RedHat Linux 6.2 sparc
RedHat Linux 6.2 i386
RedHat Linux 6.2 alpha
RedHat Linux 6.1 sparc
RedHat Linux 6.1 i386
RedHat Linux 6.1 alpha
RedHat Linux 6.0 sparc
RedHat Linux 6.0 i386
RedHat Linux 6.0 alpha

Comment 1 Bernhard Rosenkraenzer 2000-12-20 12:50:50 UTC

*** This bug has been marked as a duplicate of 10877 ***

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