VulnerabilityModified
CVE-2020-9760
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.
CRITICAL 9.8EPSS 2.25%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.25% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- weechat/weechat · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-51Third Party Advisory
- https://weechat.org/doc/security/Vendor Advisory
- https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197fPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/03/msg00031.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/09/msg00018.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-51Third Party Advisory
- https://weechat.org/doc/security/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.