e2guardian: e2guardian v5.4.x <= v5.4.3r is affected by missing SSL certificate validation in the SSL MITM engine
CVE-2021-44273 is fixed in e2guardian on 1 platform, first by DEBIAN-CVE-2021-44273, released December 23, 2021. It is not reported as exploited. Patch Radar priority: High.
e2guardian v5.4.x <= v5.4.3r is affected by missing SSL certificate validation in the SSL MITM engine. In standalone mode (i.e., acting as a proxy or a transparent proxy), with SSL MITM enabled, e2guardian, if built with OpenSSL v1.1.x, did not validate hostnames in certificates of the web servers that it connected to, and thus was itself vulnerable to MITM attacks.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| e2guardian · Debian 12.15 (bookworm) | 5.3.5-3 | DEBIAN-CVE-2021-44273 | Dec 23, 2021 |
| e2guardian · Debian 13.5 (trixie) | 5.3.5-3 | DEBIAN-CVE-2021-44273 | Dec 23, 2021 |
| e2guardian · Debian 14 | 5.3.5-3 | DEBIAN-CVE-2021-44273 | Dec 23, 2021 |
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