Vulnerability · Published Aug 1, 2024 · Assigned by GitHub_M

CVE-2024-41965Vim < v9.1.0648 has a double-free in dialog_changed()

Medium 4.2

In plain English

A medium-severity use-after-free in vim from vim. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Vim is an open source command line text editor. double-free in dialog_changed() in Vim < v9.1.0648. When abandoning a buffer, Vim may ask the user what to do with the modified buffer. If the user wants the changed buffer to be saved, Vim may create a new Untitled file, if the buffer did not have a name yet. However, when setting the buffer name to Unnamed, Vim will falsely free a pointer twice, leading to a double-free and possibly later to a heap-use-after-free, which can lead to a crash. The issue has been fixed as of Vim patch v9.1.0648.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20vim9.1.0652-r0ALPINE-CVE-2024-41965
Alpine:v3.21vim9.1.0652-r0ALPINE-CVE-2024-41965
Alpine:v3.22vim9.1.0652-r0ALPINE-CVE-2024-41965
Alpine:v3.23vim9.1.0652-r0ALPINE-CVE-2024-41965
Alpine:v3.24vim9.1.0652-r0ALPINE-CVE-2024-41965
Debian:12vimno fix listedDEBIAN-CVE-2024-41965
Debian:13vim2:9.1.0698-1DEBIAN-CVE-2024-41965
Debian:14vim2:9.1.0698-1DEBIAN-CVE-2024-41965

Affected products (as reported)

VendorProductVersions
vim vim < 9.1.0648

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

References