vim: CVE-2021-3973

Debian Bug report logs - #1001899
vim: CVE-2021-3973

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: vim: CVE-2021-3973

Date: Sat, 18 Dec 2021 17:48:58 +0100

Source: vim
Version: 2:8.2.3565-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 2:8.2.2434-3+deb11u1
Control: found -1 2:8.2.2434-3
Control: found -1 2:8.1.0875-5

Hi,

The following vulnerability was published for vim.

CVE-2021-3973[0]:
| vim is vulnerable to Heap-based Buffer Overflow

A base64 encoded poc is

YXUhKiAwIHNpbDBub3JtFhdmCm4w

verifiable with 

vim -u NONE -X -Z -e -s -S POC -c :qa!


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2021-3973
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3973
[1] https://huntr.dev/bounties/ce6e8609-77c6-4e17-b9fc-a2e5abed052e
[2] https://github.com/vim/vim/commit/615ddd5342b50a6878a907062aa471740bd9a847

Regards,
Salvatore

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