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CVE-2023-46246

Publication date 27 October 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Vim is an improved version of the good old UNIX editor Vi. Heap-use-after-free in memory allocated in the function `ga_grow_inner` in in the file `src/alloc.c` at line 748, which is freed in the file `src/ex_docmd.c` in the function `do_cmdline` at line 1010 and then used again in `src/cmdhist.c` at line 759. When using the `:history` command, it's possible that the provided argument overflows the accepted value. Causing an Integer Overflow and potentially later an use-after-free. This vulnerability has been patched in version 9.0.2068.

Status

Package Ubuntu Release Status
vim 24.04 LTS noble
Not affected
23.10 mantic
Fixed 2:9.0.1672-1ubuntu2.2
23.04 lunar
Fixed 2:9.0.1000-4ubuntu3.3
22.04 LTS jammy
Fixed 2:8.2.3995-1ubuntu2.15
20.04 LTS focal
Fixed 2:8.1.2269-1ubuntu5.21
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H