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Vulnerability record · CVE-2023-43641 · published 9 October 2023

CVE-2023-43641: Lipnitsk libcue out-of-bounds write vulnerability

LLipnitsk · Libcue

libcue provides an API for parsing and extracting data from CUE sheets. Versions 2.2.1 and prior are vulnerable to out-of-bounds array access. A user of the GNOME desktop environment can be exploited by downloading a cue sheet from a malicious webpage. Because the file is saved to `~/Downloads`, it is then automatically scanned by tracker-miners. And because it has a .cue filename extension, tracker-miners use libcue to parse the file. The file exploits the vulnerability in libcue to gain code execution. This issue is patched in version 2.3.0.

8.8 CVSS 3.1 High EPSS 17% · top 3.1% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
20References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

libcue provides an API for parsing and extracting data from CUE sheets. Versions 2.2.1 and prior are vulnerable to out-of-bounds array access. A user of the GNOME desktop environment can be exploited by downloading a cue sheet from a malicious webpage. Because the file is saved to `~/Downloads`, it is then automatically scanned by tracker-miners. And because it has a .cue filename extension, tracker-miners use libcue to parse the file. The file exploits the vulnerability in libcue to gain code execution. This issue is patched in version 2.3.0.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/176128/libcue-2.2.1-Out-Of-Bounds-Access.html
https://github.blog/2023-10-09-coordinated-disclosure-1-click-rce-on-gnome-cve-2023-43641/ ExploitThird Party Advisory
https://github.com/lipnitsk/libcue/commit/cfb98a060fd79dbc3463d85f0f29c3c335dfa0ea Patch
https://github.com/lipnitsk/libcue/commit/fdf72c8bded8d24cfa0608b8e97f2eed210a920e Patch
https://github.com/lipnitsk/libcue/security/advisories/GHSA-5982-x7hv-r9cj Exploit
https://lists.debian.org/debian-lts-announce/2023/10/msg00018.html Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/57JEYTRFG4PVGZZ7HIEFTX5I7 Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/PGQOMFDBXGM3DOICCXKCUS76O Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/XUS4HTNGGGUIFLYSKTODCRIOX Mailing List
https://www.debian.org/security/2023/dsa-5524 Third Party Advisory
http://packetstormsecurity.com/files/176128/libcue-2.2.1-Out-Of-Bounds-Access.html
https://github.blog/2023-10-09-coordinated-disclosure-1-click-rce-on-gnome-cve-2023-43641/ ExploitThird Party Advisory
https://github.com/lipnitsk/libcue/commit/cfb98a060fd79dbc3463d85f0f29c3c335dfa0ea Patch
https://github.com/lipnitsk/libcue/commit/fdf72c8bded8d24cfa0608b8e97f2eed210a920e Patch
https://github.com/lipnitsk/libcue/security/advisories/GHSA-5982-x7hv-r9cj Exploit
https://lists.debian.org/debian-lts-announce/2023/10/msg00018.html Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/57JEYTRFG4PVGZZ7HIEFTX5I7 Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/PGQOMFDBXGM3DOICCXKCUS76O Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/XUS4HTNGGGUIFLYSKTODCRIOX Mailing List
https://www.debian.org/security/2023/dsa-5524 Third Party Advisory

Track CVE-2023-43641 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Source: NIST National Vulnerability Database (record CVE-2023-43641), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.