Vim heap-use-after-free in src/arglist.c:207

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Summary

CVECVE-2024-43374
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-08-16 02:15:17 UTC
Updated2026-06-09 18:28:22 UTC
DescriptionThe 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 Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free.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.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

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

EPSS: 0.003490000 probability, percentile 0.266200000 (date 2026-06-16)

Problem Types: CWE-416 | CWE-416 CWE-416: Use After Free

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary4.5MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
3.1CNADECLARED4.5MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Neovim Neovim All All All All
Operating System Netapp Bootstrap Os - All All All
Hardware Netapp Hci Compute Node - All All All
Application Vim Vim All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Vim Vim affected < 9.1.0678 Not specified

References

ReferenceSourceLinkTags
github.com/vim/vim/commit/0a6e57b09bc8c76691b367a5babfb79b31b770e8 [email protected] github.com Patch
security.netapp.com/advisory/ntap-20240920-0004 af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
www.openwall.com/lists/oss-security/2024/08/15/6 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
github.com/vim/vim/security/advisories/GHSA-2w8m-443v-cgvw [email protected] github.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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