# CVE-2020-25219: libproxy: The libproxy packages provide a library that handles all the details of proxy configuration

CVE-2020-25219 is fixed in 16 products on 1 platform, first by libproxy-tools 0.4.15-1ubuntu0.1, released September 9, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-25219
- Priority: Routine
- CVSS: 5.9 (Moderate)
- EPSS: 0.0437
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 9, 2020

## Description

The libproxy packages provide a library that handles all the details of proxy configuration. The libproxy library provides a stable external API, dynamic adjustment to changing network topology, and small core footprint. It does not use external dependencies within the libproxy core, however libproxy plug-ins may have dependencies.  Bug Fix(es) and Enhancement(s):  * libproxy: sending more than 102400 bytes in PAC without a Content-Length present could result in buffer overflow [rhel-8.10.0] (JIRA:RHEL-30660)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libproxy RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy-bin RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy-devel RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy-gnome RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy-networkmanager RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy-tools Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy-tools 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy-tools-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy-tools Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy-tools 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy-tools-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy-webkitgtk4 RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | libproxy0.4-cil Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy0.4-cil 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy0.4-cil-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy0.4-cil Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy0.4-cil 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy0.4-cil-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-gsettings Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy1-plugin-gsettings 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy1-plugin-gsettings-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-gsettings Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1-plugin-gsettings 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1-plugin-gsettings-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-kconfig Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy1-plugin-kconfig 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy1-plugin-kconfig-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-kconfig Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1-plugin-kconfig 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1-plugin-kconfig-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-mozjs Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1-plugin-mozjs 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1-plugin-mozjs-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-networkmanager Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy1-plugin-networkmanager 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy1-plugin-networkmanager-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-networkmanager Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1-plugin-networkmanager 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1-plugin-networkmanager-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-webkit Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy1-plugin-webkit 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy1-plugin-webkit-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy1-plugin-webkit Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1-plugin-webkit 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1-plugin-webkit-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | libproxy1v5 Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [libproxy1v5 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libproxy1v5-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | libproxy1v5 Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [libproxy1v5 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libproxy1v5-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |
| Linux | python-libproxy Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [python-libproxy 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-libproxy-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | python3-libproxy RHEL 8 | 0:0.4.15-5.5.el8_10 | [RHEA-2024:8852](https://patchblox.com/security/data/fix/linux/rhea-2024-8852.md) | Nov 5, 2024 |
| Linux | python3-libproxy Ubuntu 18.04.6 LTS (bionic) | 0.4.15-1ubuntu0.1 | [python3-libproxy 0.4.15-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-libproxy-0.4.15-1ubuntu0.1.md) | Sep 9, 2020 |
| Linux | python3-libproxy Ubuntu 20.04 LTS (focal) | 0.4.15-10ubuntu1.1 | [python3-libproxy 0.4.15-10ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-libproxy-0.4.15-10ubuntu1.1.md) | Sep 9, 2020 |

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Data as of 2026-11-07T06:34:28Z 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