CVE-2020-9760

moderate-risk
Published 2020-03-23

An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick.

Do I need to act?

~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 5c0aa1aae7ac3e209acf62cce6eacffcc887cc98, 40ccacb4330a64802b1f1e28ed9a6b6d3ca9197f
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Weechat

Affected Vendors

Debian Weechat

References (10)

Patch https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca919...
Mailing List https://lists.debian.org/debian-lts-announce/2020/03/msg00031.html
Mailing List https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html
Third Party Advisory https://security.gentoo.org/glsa/202003-51
Vendor Advisory https://weechat.org/doc/security/
Patch https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca919...
Mailing List https://lists.debian.org/debian-lts-announce/2020/03/msg00031.html
Mailing List https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html
Third Party Advisory https://security.gentoo.org/glsa/202003-51
Vendor Advisory https://weechat.org/doc/security/
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 9/34 · Low