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Vulnerabilities / CVE-2020-8955

critical

CVE-2020-8955

irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2 ...

Published Modified CWE 120
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Ubuntu (medium).

Description

irc_mode_channel_update in plugins/irc/irc-mode.c in WeeChat through 2.7 allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a malformed IRC message 324 (channel mode).

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.11weechat2.7.1-r0
alpine 3.12weechat2.7.1-r0
alpine 3.13weechat2.7.1-r0
alpine 3.14weechat2.7.1-r0
alpine 3.15weechat2.7.1-r0
alpine 3.16weechat2.7.1-r0
alpine 3.17weechat2.7.1-r0
alpine 3.18weechat2.7.1-r0
alpine 3.19weechat2.7.1-r0
alpine 3.20weechat2.7.1-r0
alpine 3.21weechat2.7.1-r0
alpine 3.22weechat2.7.1-r0
Show all 25 entries from 25 sources
SourcePackageFixed in
alpine 3.11weechat2.7.1-r0
alpine 3.12weechat2.7.1-r0
alpine 3.13weechat2.7.1-r0
alpine 3.14weechat2.7.1-r0
alpine 3.15weechat2.7.1-r0
alpine 3.16weechat2.7.1-r0
alpine 3.17weechat2.7.1-r0
alpine 3.18weechat2.7.1-r0
alpine 3.19weechat2.7.1-r0
alpine 3.20weechat2.7.1-r0
alpine 3.21weechat2.7.1-r0
alpine 3.22weechat2.7.1-r0
alpine 3.23weechat2.7.1-r0
alpine 3.24weechat2.7.1-r0
alpine edgeweechat2.7.1-r0
debian 10weechat2.3-1+deb10u1
debian 11weechat2.7.1-1
debian 12weechat2.7.1-1
debian 13weechat2.7.1-1
debian 14weechat2.7.1-1
debian 8weechat1.0.1-1+deb8u3
debian 9weechat1.6-1+deb9u3
echoweechat2.7.1-1
ubuntu 16.04-ESMweechat1.4-2ubuntu0.1+esm1
ubuntu 18.04-ESMweechat1.9.1-1ubuntu1+esm1

References

All 11 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.