CVE-2020-9760
CRITICAL severity · CVSS 9.8 · Buffer overflow
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197f ↗
Additional information
- NVD record
- https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fPatch
- https://weechat.org/doc/security/Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlAdvisory
- https://security.gentoo.org/glsa/202003-51Advisory