# CVE-2023-44428: musescore2: MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE-2023-44428 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2023-44428, released May 3, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-44428
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0053
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 3, 2024

## Description

MuseScore CAP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MuseScore. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.  The specific flaw exists within the parsing of CAP files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-20769.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | musescore2 Debian 13.5 (trixie) | 2.3.2+dfsg4-16 | [DEBIAN-CVE-2023-44428](https://patchblox.com/security/data/fix/linux/debian-cve-2023-44428.md) | May 3, 2024 |
| Linux | musescore3 Debian 13.5 (trixie) | 3.2.3+dfsg2-18 | [DEBIAN-CVE-2023-44428](https://patchblox.com/security/data/fix/linux/debian-cve-2023-44428.md) | May 3, 2024 |
| Linux | musescore3 Debian 14 | 3.2.3+dfsg2-18 | [DEBIAN-CVE-2023-44428](https://patchblox.com/security/data/fix/linux/debian-cve-2023-44428.md) | May 3, 2024 |

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