#VU60795 Use-after-free in Vim - CVE-2021-4069
Published: February 22, 2022
Vulnerability identifier: #VU60795
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-4069
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Vim
Vim
Software vendor:
Vim.org
Vim.org
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install updates from vendor's website.
External links
- https://huntr.dev/bounties/0efd6d23-2259-4081-9ff1-3ade26907d74
- https://github.com/vim/vim/commit/e031fe90cf2e375ce861ff5e5e281e4ad229ebb9
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYB2LLNUFJUKJJ5HYCZ6MV3Z6YX3U5BN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
- http://www.openwall.com/lists/oss-security/2022/01/15/1