CVE-2021-40516
First published: Sun Sep 05 2021(Updated: )
WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash) via a crafted WebSocket frame that trigger an out-of-bounds read in plugins/relay/relay-websocket.c in the Relay plugin.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WeeChat WeeChat | >=0.4.1<3.2.1 | |
| Debian GNU/Linux | =10.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-40516?
CVE-2021-40516 has a severity rating that indicates a denial of service vulnerability.
How do I fix CVE-2021-40516?
To fix CVE-2021-40516, upgrade to WeeChat version 3.2.1 or later.
What causes CVE-2021-40516?
CVE-2021-40516 is caused by a crafted WebSocket frame that leads to an out-of-bounds read.
Which versions of WeeChat are affected by CVE-2021-40516?
WeeChat versions prior to 3.2.1 are affected by CVE-2021-40516.
Can CVE-2021-40516 be exploited remotely?
Yes, CVE-2021-40516 can be exploited remotely by attackers targeting the Relay plugin.
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