tinyproxy: A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0
CVE-2023-49606 is fixed in 2 products on 1 platform, first by tinyproxy 1.8.4-5ubuntu0.1~esm3, released May 1, 2024. It is not reported as exploited. Patch Radar priority: Urgent.
A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| tinyproxy · Debian 12.15 (bookworm) | 1.11.1-2.1+deb12u1 | DSA-5705-1 | Jun 5, 2024 |
| tinyproxy · Debian 13.5 (trixie) | 1.11.1-4 | DEBIAN-CVE-2023-49606 | May 1, 2024 |
| tinyproxy · Debian 14 | 1.11.1-4 | DEBIAN-CVE-2023-49606 | May 1, 2024 |
| tinyproxy · Ubuntu 18.04.6 LTS (bionic) | 1.8.4-5ubuntu0.1~esm3 | tinyproxy 1.8.4-5ubuntu0.1~esm3 | May 1, 2024 |
| tinyproxy · Ubuntu 20.04 LTS (focal) | 1.10.0-4ubuntu0.2 | tinyproxy 1.10.0-4ubuntu0.2 | May 1, 2024 |
| tinyproxy · Ubuntu 22.04.1 LTS (jammy) | 1.11.0-1ubuntu0.1~esm2 | tinyproxy 1.11.0-1ubuntu0.1~esm2 | May 1, 2024 |
| tinyproxy · Ubuntu 24.04.5 LTS (noble) | 1.11.1-3ubuntu0.1 | tinyproxy 1.11.1-3ubuntu0.1 | May 1, 2024 |
| tinyproxy · Ubuntu 24.10 (oracular) | 1.11.2-1 | tinyproxy 1.11.2-1 | Jan 16, 2026 |
| tinyproxy · Ubuntu 25.04 (plucky) | 1.11.2-1 | tinyproxy 1.11.2-1 | Jan 16, 2026 |
| tinyproxy · Ubuntu 25.10 (questing) | 1.11.2-1 | tinyproxy 1.11.2-1 | May 1, 2024 |
| tinyproxy · Ubuntu 26.04.1 LTS (resolute) | 1.11.2-1 | tinyproxy 1.11.2-1 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 18.04.6 LTS (bionic) | 1.8.4-5ubuntu0.1~esm3 | tinyproxy-bin 1.8.4-5ubuntu0.1~esm3 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 20.04 LTS (focal) | 1.10.0-4ubuntu0.2 | tinyproxy-bin 1.10.0-4ubuntu0.2 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 22.04.1 LTS (jammy) | 1.11.0-1ubuntu0.1~esm2 | tinyproxy-bin 1.11.0-1ubuntu0.1~esm2 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 24.04.5 LTS (noble) | 1.11.1-3ubuntu0.1 | tinyproxy-bin 1.11.1-3ubuntu0.1 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 24.10 (oracular) | 1.11.2-1 | tinyproxy-bin 1.11.2-1 | Jan 16, 2026 |
| tinyproxy-bin · Ubuntu 25.04 (plucky) | 1.11.2-1 | tinyproxy-bin 1.11.2-1 | Jan 16, 2026 |
| tinyproxy-bin · Ubuntu 25.10 (questing) | 1.11.2-1 | tinyproxy-bin 1.11.2-1 | May 1, 2024 |
| tinyproxy-bin · Ubuntu 26.04.1 LTS (resolute) | 1.11.2-1 | tinyproxy-bin 1.11.2-1 | May 1, 2024 |
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