Vulnerability Description
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.
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 |
|---|---|---|
| Weechat | Weechat | >= 0.4.1, < 3.2.1 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d73PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing ListThird Party Advisory
- https://weechat.org/doc/security/PatchVendor Advisory
- https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d73PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing ListThird Party Advisory
- https://weechat.org/doc/security/PatchVendor Advisory
FAQ
What is CVE-2021-40516?
CVE-2021-40516 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 plugi...
How severe is CVE-2021-40516?
CVE-2021-40516 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-2021-40516?
Check the references section above for vendor advisories and patch information. Affected products include: Weechat Weechat, Debian Debian Linux.