Use of Out-of-range Pointer Offset in Vim - CVE-2023-2426
Published: May 30, 2023
Vulnerability identifier: #VU76670
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-2426
CWE-ID: CWE-823
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Vim.org
Affected software:
Vim
Vim
Detailed vulnerability description
The vulnerability allows a remote attacker to crash the application.
The vulnerability exists due to an out-of-range pointer offset within the mb_charlen() function in mbyte.c. A remote attacker can trick the victim to open a specially crafted file and crash the application.
How to mitigate CVE-2023-2426
Install updates from vendor's website.
Sources
- https://huntr.dev/bounties/3451be4c-91c8-4d08-926b-cbff7396f425
- https://github.com/vim/vim/commit/caf642c25de526229264cab9425e7c9979f3509b
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LOJP6M7ZTKZQYOGVOOAY6TIE6ACBJL55/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PCLJN4QINITA3ZASKLEJ64C5TFNKELMO/