Vulnerability Details : CVE-2018-25021
Potential exploit
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).
Vulnerability category: Denial of service
Products affected by CVE-2018-25021
- cpe:2.3:a:toktok:toxcore:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-25021
0.98%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-25021
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-25021
-
The product does not release or incorrectly releases a resource before it is made available for re-use.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-25021
-
https://github.com/TokTok/c-toxcore/issues/1214
Massive red shutdown of nodes · Issue #1214 · TokTok/c-toxcore · GitHubExploit;Third Party Advisory
-
https://github.com/TokTok/c-toxcore/pull/1216
Fix memory leak in tcp server by wiping priority queues on deletion. by zugz · Pull Request #1216 · TokTok/c-toxcore · GitHubThird Party Advisory
-
https://blog.tox.chat/2018/10/memory-leak-bug-and-new-toxcore-release-fixing-it/
Memory leak bug and new Toxcore release fixing it – Tox BlogThird Party Advisory
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