TI-2024-29384 Aliases CVE-2024-43790

heap-buffer-overflow in do_search() in Vim < 9.1.0689

LOW 25CWE-122Published 2024-08-22 · Updated 2024-09-20

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

Vim is an open source command line text editor. When performing a search and displaying the search-count message is disabled (:set shm+=S), the search pattern is displayed at the bottom of the screen in a buffer (msgbuf). When right-left mode (:set rl) is enabled, the search pattern is reversed. This happens by allocating a new buffer. If the search pattern contains some ASCII NUL characters, the buffer allocated will be smaller than the original allocated buffer (because for allocating the reversed buffer, the strlen() function is called, which only counts until it notices an ASCII NUL byte ) and thus the original length indicator is wrong. This causes an overflow when accessing characters inside the msgbuf by the previously (now wrong) length of the msgbuf. The issue has been fixed as of Vim patch v9.1.0689.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00307 23rd percentileScored 2026-11-07

Fix Partial vim (vim): v9.1.0689Red Hat: 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
vim	vim	before v9.1.0689	v9.1.0689	Patch available	CNA

vim Vendorvim Affected before v9.1.0689 Fixed in v9.1.0689 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:vim:vim::::::::	9.1.0425 to before 9.1.0689	Vulnerable	vim
cpe:2.3:o:netapp:bootstrap_os:-:::::::*	not specified by NVD	Vulnerable	NetApp
cpe:2.3:h:netapp:hci_compute_node:-:::::::*	not specified by NVD	Running on	NetApp

cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:* Versions 9.1.0425 to before 9.1.0689 Vulnerable ·vim
cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Remediation

Fix · CNA vim (vim) Fixed in v9.1.0689

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat OpenShift Container Platform 4	Affected	No fix planned: Will not fix

Not affected: 3 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2024-43790
2026-10-21 Affected versions changed · Red Hat
2026-10-22 Affected versions changed · Red Hat

References

Patch 1

https://github.com/vim/vim/commit/cacb6693c10bb19f28a50eca47bc

Advisory 2

TI-2022-03248 Heap-based Buffer Overflow in vim/vim CVSS 3.1CRITICAL 9.8
TI-2024-15103 Vim before 9.0.2142 has a stack-based buffer overflow because did_set_langmap in map.c… CVSS 3.1HIGH 7.8
TI-2023-05093 Use After Free in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04407 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04379 Heap-based Buffer Overflow in vim/vim CVSS 3.1HIGH 7.8
TI-2023-04378 Use After Free in vim/vim CVSS 3.1HIGH 7.8

See all 258 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences