Description
The NetworkSyncCommandQueue function in network/network_command.cpp in OpenTTD before 1.0.3 does not properly clear a pointer in a linked list, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a crafted request, related to the client command queue.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openttd | 1.0.3-1 | — |
| Debian 13 | openttd | 1.0.3-1 | — |
| Debian 12 | openttd | 1.0.3-1 | — |
References
- openttd-networksynccommandqueue-dos(60568) vdb-entry
- FEDORA-2010-11450 vendor-advisory
- ADV-2010-1888 vdb-entry
- http://bugs.openttd.org/task/3909/getfile/6237/loop_fix.patch
- http://security.openttd.org/en/CVE-2010-2534
- [oss-security] 20100720 CVE request for OpenTTD mailing-list
- FEDORA-2010-11401 vendor-advisory
- http://bugs.openttd.org/task/3909
- 41804 vdb-entry
- 66503 vdb-entry
- 40760 third-party-advisory
- 40630 third-party-advisory
- ADV-2010-1916 vdb-entry