CVE-2018-18541: Input Validation
First published: Sat Oct 20 2018(Updated: )
In Teeworlds before 0.6.5, connection packets could be forged. There was no challenge-response involved in the connection build up. A remote attacker could send connection packets from a spoofed IP address and occupy all server slots, or even use them for a reflection attack using map download packets.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/teeworlds | 0.7.2-5+deb10u1 0.7.5-1 0.7.5-2 | |
| Teeworlds | <0.6.5 | |
| Debian | =9.0 |
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Reference Links
- https://www.teeworlds.com/forum/viewtopic.php?id=12544
- https://github.com/teeworlds/teeworlds/issues/1536
- https://github.com/teeworlds/teeworlds/commit/a263185571903ead01f6b351a91ea219ac9d215f
- https://github.com/teeworlds/teeworlds/commit/aababc63eeeee1bc41672502ca6c7a1dd9f61d94
- https://github.com/teeworlds/teeworlds/commit/f5fa1a92ed81ed8da721e803a036b1553a38e39e
- https://security-tracker.debian.org/tracker/CVE-2018-18541
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00046.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00077.html
- https://bugs.debian.org/911487
- https://teeworlds.com/?page=news&id=12544
- https://www.debian.org/security/2018/dsa-4329
Frequently Asked Questions
What is the severity of CVE-2018-18541?
CVE-2018-18541 is considered a medium severity vulnerability due to its potential for denial of service attacks.
How do I fix CVE-2018-18541?
To fix CVE-2018-18541, upgrade Teeworlds to version 0.6.5 or later.
What type of attack is possible due to CVE-2018-18541?
CVE-2018-18541 allows remote attackers to perform connection spoofing and potentially execute reflection attacks.
Which versions of Teeworlds are affected by CVE-2018-18541?
CVE-2018-18541 affects all versions of Teeworlds prior to 0.6.5.
Is there a specific operating system vulnerable to CVE-2018-18541?
Yes, CVE-2018-18541 affects Teeworlds installations on Debian GNU/Linux 9.0 when using affected versions.
- collector/security-tracker-debian
- agent/type
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/teeworlds
- canonical/teeworlds
- vendor/debian
- canonical/debian
- version/debian/9.0