Published: 05/09/2021 Updated: 07/10/2021

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

WeeChat prior to 3.2.1 allows remote malicious users 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.

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weechat weechat
debian debian linux 10.0

Debian Bug report logs - #993803 weechat: CVE-2021-40516 Package: src:weechat; Maintainer for src:weechat is Emmanuel Bouthenot <kolter@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Mon, 6 Sep 2021 17:42:02 UTC Severity: important Tags: security, upstream Found in version weechat/301-1 ...

WeeChat before 321 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-websocketc in the Relay plugin ...

CWE-125 https://weechat.org/doc/security/https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d735b https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993803 https://nvd.nist.gov

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CVE-2021-40516

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