Bug 616874 (CVE-2010-2534) - CVE-2010-2534 OpenTTD: DoS (server infinite loop with excessive CPU use) when new client is joining server game (FS#3909)
Summary: CVE-2010-2534 OpenTTD: DoS (server infinite loop with excessive CPU use) when...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2010-2534
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 616875
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-07-21 15:37 UTC by Jan Lieskovsky
Modified: 2021-11-04 16:14 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-07-27 05:30:00 UTC
Embargoed:

Attachments (Terms of Use)

Description Jan Lieskovsky 2010-07-21 15:37:52 UTC 
User with nickname 'Dolly' reported:
  [1] http://bugs.openttd.org/task/3909

a deficiency in the way OpenTTD transportation business simulation game
server synced local command queue to the command queue of the given socket
after receiving a command from a game joining client. A remote attacker
could use this flaw to conduct denial of service attacks, leading to game
server infinite loop consuming excessive amount of CPU time.

Proposed patch:
  [2] http://bugs.openttd.org/task/3909/getfile/6237/loop_fix.patch (needs
      upstream review and may change in final form)

CVE Request:
  [3] http://www.openwall.com/lists/oss-security/2010/07/20/1

How reproducible: Sometimes
Comment 1 Jan Lieskovsky 2010-07-21 15:39:53 UTC 
This issue affects the versions of the openttd package, as shipped
with Fedora release of 12 and 13. Please fix once final version of
upstream patch is known.
Comment 2 Jan Lieskovsky 2010-07-21 15:42:16 UTC 
Created openttd tracking bugs for this issue

Affects: fedora-all [bug 616875]
Comment 3 Jan Lieskovsky 2010-07-22 17:45:00 UTC 
The CVE identifier of CVE-2010-2534 has been assigned to this issue
(http://www.openwall.com/lists/oss-security/2010/07/21/6).
Comment 4 Fedora Update System 2010-07-27 02:35:24 UTC 
openttd-1.0.3-0.1.RC1.fc13 has been pushed to the Fedora 13 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2010-07-27 02:45:07 UTC 
openttd-1.0.3-0.1.RC1.fc12 has been pushed to the Fedora 12 stable repository.  If problems still persist, please make note of it in this bug report.
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