vulnerability
Arch Linux: Arbitrary code execution (CVE-2020-9760)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Mar 23, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Mar 23, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A heap-based out-of-bounds write has been found in Weechat before 2.7.1, when a new IRC message 005 is received with longer nick prefixes. It could lead to writing out of the allocated prefixes array when setting a prefix, resulting in denial of service (crash) or even arbitrary code execution.
Solution
arch-linux-upgrade-latest
References
- CVE-2020-9760
- https://attackerkb.com/topics/CVE-2020-9760
- URL-https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197f
- URL-https://lists.debian.org/debian-lts-announce/2020/03/msg00031.html
- URL-https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html
- URL-https://security.archlinux.org/ASA-202002-12
- URL-https://security.gentoo.org/glsa/202003-51
- URL-https://weechat.org/doc/security/
- URL-https://weechat.org/news/113/20200220-Version-2.7.1-security-release/
- CWE-120
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