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Vim < 9.1.0678 Heap-Use

medium Nessus Plugin ID 206156

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Synopsis

The remote host is missing a security update.

Description

The version of Vim installed on the remote host is prior to 9.1.0678. It is, therefore, affected by a vulnerability as referenced in the advisory.

 - The UNIX editor Vim prior to version 9.1.0678 has a use-after-free error in argument list handling. When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free. Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678. (CVE-2024-43374)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Vim version 9.1.0678 or later.

See Also

https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw

Plugin Details

Severity: Medium

ID: 206156

File Name: vim_9_1_0678.nasl

Version: 1.2

Type: local

Agent: windows

Family: Windows

Published: 8/23/2024

Updated: 8/29/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Low

Base Score: 3.7

Temporal Score: 2.7

Vector: CVSS2#AV:L/AC:H/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2024-43374

CVSS v3

Risk Factor: Medium

Base Score: 4.5

Temporal Score: 3.9

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:vim:vim

Required KB Items: SMB/Registry/Enumerated, installed_sw/Vim

Exploit Ease: No known exploits are available

Patch Publication Date: 8/15/2024

Vulnerability Publication Date: 8/15/2024

Reference Information

CVE: CVE-2024-43374

IAVA: 2024-A-0505-S