| Name | CVE-2023-49606 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3892-1, DSA-5705-1 |
| Debian Bugs | 1070395 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tinyproxy (PTS) | jessie, jessie (lts) | 1.8.3-3+deb8u1 | vulnerable |
| stretch | 1.8.4-3~deb9u2 | vulnerable |
| buster | 1.10.0-2+deb10u1 | vulnerable |
| bullseye | 1.10.0-5 | vulnerable |
| bullseye (security) | 1.10.0-5+deb11u1 | fixed |
| bookworm (security), bookworm | 1.11.1-2.1+deb12u1 | fixed |
| sid, trixie | 1.11.2-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - tinyproxy <postponed> (Not exploitable easily for RCE; but fix with next update)
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889
https://github.com/tinyproxy/tinyproxy/issues/533
https://github.com/tinyproxy/tinyproxy/commit/12a8484265f7b00591293da492bb3c9987001956