CVE-2024-43374
"Vim Use-After-Free Vulnerability"
Description
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 Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free.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.
INFO
Published Date :
Aug. 16, 2024, 2:15 a.m.
Last Modified :
Aug. 19, 2024, 1 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.4
Exploitability Score :
1.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-43374.
| URL | Resource |
|---|---|
| https://github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8 | |
| https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-43374 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-43374 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Received by [email protected]
Aug. 16, 2024
Action Type Old Value New Value Added Description 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. Added Reference GitHub, Inc. https://github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw [No types assigned] Added Reference GitHub, Inc. https://github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8 [No types assigned] Added CWE GitHub, Inc. CWE-416 Added CVSS V3.1 GitHub, Inc. AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-43374 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-43374
weaknesses.