CVE-2021-40516
published 2021-09-05CVE-2021-40516: 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…
PriorityP434high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.59%
73.3th percentile
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.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | weechat | < weechat 3.2.1-1 (bookworm) | weechat 3.2.1-1 (bookworm) |
| weechat | weechat | >= 0 < 3.0-1+deb11u1 | 3.0-1+deb11u1 |
| weechat | weechat | >= 0 < 3.2.1-1 | 3.2.1-1 |
| weechat | weechat | >= 0 < 3.2.1-1 | 3.2.1-1 |
| weechat | weechat | >= 0 < 3.2.1-1 | 3.2.1-1 |
| weechat | weechat | >= 0 < 1.4-2ubuntu0.1+esm1 | 1.4-2ubuntu0.1+esm1 |
| weechat | weechat | >= 0 < 1.9.1-1ubuntu1+esm1 | 1.9.1-1ubuntu1+esm1 |
| weechat | weechat | >= 0 < 2.8-1ubuntu0.1~esm1 | 2.8-1ubuntu0.1~esm1 |
| weechat | weechat | >= 0.4.1 < 3.2.1 | 3.2.1 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_ubuntu7.5HIGH
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GHSA
GHSA-82mm-45xg-j4xh: WeeChat before 3
ghsa_unreviewed·2022-05-24
CVE-2021-40516 [HIGH] CWE-125 GHSA-82mm-45xg-j4xh: WeeChat before 3
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.
OSV
weechat vulnerabilities
osv·2022-02-04·CVSS 7.5
CVE-2021-40516 [HIGH] weechat vulnerabilities
weechat vulnerabilities
Stuart Nevans Locke discovered that WeeChat's relay plugin insecurely handled
malformed websocket frames. A remote attacker in control of a server
could possibly use this issue to cause denial of service in a client.
(CVE-2021-40516)
Stuart Nevans Locke discovered that WeeChat insecurely handled certain
IRC messages. A remote attacker in control of a server could possibly use
this issue to cause denial of service in a client. This issue only affected
Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9760)
Stuart Nevans Locke discovered that WeeChat insecurely handled certain
IRC messages. A remote unauthenticated attacker could possibly use these
issues to cause denial of service in a client. These issues only affected
Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2
OSV
CVE-2021-40516: WeeChat before 3
osv·2021-09-05·CVSS 7.5
CVE-2021-40516 [HIGH] CVE-2021-40516: WeeChat before 3
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.
Ubuntu
WeeChat vulnerabilities
vendor_ubuntu·2022-02-04·CVSS 7.5
CVE-2020-9760 [HIGH] WeeChat vulnerabilities
Title: WeeChat vulnerabilities
Summary: Several security issues were fixed in WeeChat.
Stuart Nevans Locke discovered that WeeChat's relay plugin insecurely handled
malformed websocket frames. A remote attacker in control of a server
could possibly use this issue to cause denial of service in a client.
(CVE-2021-40516)
Stuart Nevans Locke discovered that WeeChat insecurely handled certain
IRC messages. A remote attacker in control of a server could possibly use
this issue to cause denial of service in a client. This issue only affected
Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9760)
Stuart Nevans Locke discovered that WeeChat insecurely handled certain
IRC messages. A remote unauthenticated attacker could possibly use these
issues to cause denial of service in a client. These is
Debian
CVE-2021-40516: weechat - WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash...
vendor_debian·2021·CVSS 7.5
CVE-2021-40516 [HIGH] CVE-2021-40516: weechat - WeeChat before 3.2.1 allows remote attackers to cause a denial of service (crash...
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.
Scope: local
bookworm: resolved (fixed in 3.2.1-1)
bullseye: resolved (fixed in 3.0-1+deb11u1)
forky: resolved (fixed in 3.2.1-1)
sid: resolved (fixed in 3.2.1-1)
trixie: resolved (fixed in 3.2.1-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d735bhttps://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlhttps://weechat.org/doc/security/https://github.com/weechat/weechat/commit/8b1331f98de1714bae15a9ca2e2b393ba49d735bhttps://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlhttps://weechat.org/doc/security/
2021-09-05
Published