Vulnerability Description
The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service (DoS).
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Toktok | Toxcore | < 0.2.8 |
Related Weaknesses (CWE)
References
- https://blog.tox.chat/2018/10/memory-leak-bug-and-new-toxcore-release-fixing-it/Third Party Advisory
- https://github.com/TokTok/c-toxcore/issues/1214ExploitThird Party Advisory
- https://github.com/TokTok/c-toxcore/pull/1216Third Party Advisory
- https://blog.tox.chat/2018/10/memory-leak-bug-and-new-toxcore-release-fixing-it/Third Party Advisory
- https://github.com/TokTok/c-toxcore/issues/1214ExploitThird Party Advisory
- https://github.com/TokTok/c-toxcore/pull/1216Third Party Advisory
FAQ
What is CVE-2018-25021?
CVE-2018-25021 is a vulnerability with a CVSS score of 7.5 (HIGH). The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service (...
How severe is CVE-2018-25021?
CVE-2018-25021 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-25021?
Check the references section above for vendor advisories and patch information. Affected products include: Toktok Toxcore.