CVE-2020-9760

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.05% Top 25%
Vendor Advisory gentoo.org Vendor Advisory weechat.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://weechat.org/doc/security/ vendor advisory
https://github.com/weechat/weechat/commit/40ccacb4330a64802b1f1e28ed9a6b6d3ca9197f third party advisory patch
https://lists.debian.org/debian-lts-announce/2020/03/msg00031.html third party advisory mailing list
https://security.gentoo.org/glsa/202003-51 third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/09/msg00018.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-9760?
CVE-2020-9760 has been scored as a critical severity vulnerability.
How to fix CVE-2020-9760?
To fix CVE-2020-9760, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-9760 being actively exploited in the wild?
It is possible that CVE-2020-9760 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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