# CVE-2023-51713: proftpd-dfsg: make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because of misha...

CVE-2023-51713 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2023-51713, released December 22, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-51713
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0425
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 21, 2023

## Description

make_ftp_cmd in main.c in ProFTPD before 1.3.8a has a one-byte out-of-bounds read, and daemon crash, because of mishandling of quote/backslash semantics.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | proftpd-basic Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-basic 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-basic-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-basic Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-basic 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-basic-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-core Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-core 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-core-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-dfsg Debian 12.15 (bookworm) | 1.3.8+dfsg-4+deb12u3 | [DEBIAN-CVE-2023-51713](https://patchblox.com/security/data/fix/linux/debian-cve-2023-51713.md) | Dec 22, 2023 |
| Linux | proftpd-dfsg Debian 13.5 (trixie) | 1.3.8.a+dfsg-1 | [DEBIAN-CVE-2023-51713](https://patchblox.com/security/data/fix/linux/debian-cve-2023-51713.md) | Dec 22, 2023 |
| Linux | proftpd-dfsg Debian 14 | 1.3.8.a+dfsg-1 | [DEBIAN-CVE-2023-51713](https://patchblox.com/security/data/fix/linux/debian-cve-2023-51713.md) | Dec 22, 2023 |
| Linux | proftpd-mod-crypto Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-crypto 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-crypto-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-geoip Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-geoip 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-geoip-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-geoip Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-geoip 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-geoip-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-ldap Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-ldap 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-ldap-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-ldap Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-ldap 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-ldap-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-mysql Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-mysql 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-mysql-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-mysql Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-mysql 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-mysql-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-odbc Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-odbc 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-odbc-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-odbc Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-odbc 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-odbc-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-pgsql Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-pgsql 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-pgsql-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-pgsql Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-pgsql 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-pgsql-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-snmp Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-snmp 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-snmp-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-snmp Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-snmp 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-snmp-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-sqlite Ubuntu 20.04 LTS (focal) | 1.3.6c-2ubuntu0.1 | [proftpd-mod-sqlite 1.3.6c-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-proftpd-mod-sqlite-1.3.6c-2ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-sqlite Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-sqlite 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-sqlite-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |
| Linux | proftpd-mod-wrap Ubuntu 22.04.1 LTS (jammy) | 1.3.7c+dfsg-1ubuntu0.1 | [proftpd-mod-wrap 1.3.7c+dfsg-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-proftpd-mod-wrap-1.3.7c-dfsg-1ubuntu0.1.md) | Nov 28, 2024 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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