# CVE-2022-29536: epiphany-browser: In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_st...

CVE-2022-29536 is fixed in 2 products on 1 platform, first by epiphany-browser 3.36.4-0ubuntu2, released April 20, 2022. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-29536
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0205
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 20, 2022

## Description

In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | epiphany-browser Debian 11.6 (bullseye) | 3.38.2-1+deb11u3 | [DSA-5208-1](https://patchblox.com/security/data/fix/linux/dsa-5208-1.md) | Aug 16, 2022 |
| Linux | epiphany-browser Debian 12.15 (bookworm) | 42.2-1 | [DEBIAN-CVE-2022-29536](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29536.md) | Apr 20, 2022 |
| Linux | epiphany-browser Debian 13.5 (trixie) | 42.2-1 | [DEBIAN-CVE-2022-29536](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29536.md) | Apr 20, 2022 |
| Linux | epiphany-browser Debian 14 | 42.2-1 | [DEBIAN-CVE-2022-29536](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29536.md) | Apr 20, 2022 |
| Linux | epiphany-browser Ubuntu 20.04 LTS (focal) | 3.36.4-0ubuntu2 | [epiphany-browser 3.36.4-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-epiphany-browser-3.36.4-0ubuntu2.md) | Apr 20, 2022 |
| Linux | epiphany-browser Ubuntu 22.04.1 LTS (jammy) | 42.1-1ubuntu1 | [epiphany-browser 42.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-epiphany-browser-42.1-1ubuntu1.md) | Apr 20, 2022 |
| Linux | epiphany-browser-data Ubuntu 20.04 LTS (focal) | 3.36.4-0ubuntu2 | [epiphany-browser-data 3.36.4-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-epiphany-browser-data-3.36.4-0ubuntu2.md) | Apr 20, 2022 |
| Linux | epiphany-browser-data Ubuntu 22.04.1 LTS (jammy) | 42.1-1ubuntu1 | [epiphany-browser-data 42.1-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-epiphany-browser-data-42.1-1ubuntu1.md) | Apr 20, 2022 |

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Data as of 2026-11-08T06:59:42Z 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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