CVE-2025-26603

Sažetak

Vim is a greatly improved version of the good old UNIX editor Vi. Vim allows to redirect screen messages using the `:redir` ex command to register, variables and files. It also allows to show the contents of registers using the `:registers` or `:display` ex command. When redirecting the output of `:display` to a register, Vim will free the register content before storing the new content in the register. Now when redirecting the `:display` command to a register that is being displayed, Vim will free the content while shortly afterwards trying to access it, which leads to a use-after-free. Vim pre 9.1.1115 checks in the ex_display() function, that it does not try to redirect to a register while displaying this register at the same time. However this check is not complete, and so Vim does not check the `+` and `*` registers (which typically donate the X11/clipboard registers, and when a clipboard connection is not possible will fall back to use register 0 instead. In Patch 9.1.1115 Vim will therefore skip outputting to register zero when trying to redirect to the clipboard registers `*` or `+`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Reference

CVSS

Base:	4.2
Impact:	3.4
Exploitability:	0.8

Pristup

Vektor	Složenost	Autentikacija
LOCAL	HIGH	LOW

Impact

Povjerljivost	Cjelovitost	Dostupnost
LOW	LOW	LOW

CVSS vektor

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Zadnje važnije ažuriranje

18-02-2025 - 19:15

Objavljeno

18-02-2025 - 19:15