| Name | CVE-2017-8821 | 
| Description | In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, an attacker can cause a denial of service (application hang) via crafted PEM input that signifies a public key requiring a password, which triggers an attempt by the OpenSSL library to ask the user for the password, aka TROVE-2017-011. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| References | DSA-4054-1 | 
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|---|---|---|
| tor (PTS) | bullseye (security), bullseye | 0.4.5.16-1 | fixed | 
| bookworm, bookworm (security) | 0.4.7.16-1 | fixed | |
| forky, sid, trixie | 0.4.8.16-1 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|---|---|---|---|---|---|
| tor | source | wheezy | (unfixed) | end-of-life | ||
| tor | source | jessie | 0.2.5.16-1 | DSA-4054-1 | ||
| tor | source | stretch | 0.2.9.14-1 | DSA-4054-1 | ||
| tor | source | (unstable) | 0.3.1.9-1 | 
[wheezy] - tor <end-of-life> (Not supported in wheezy LTS)
https://bugs.torproject.org/24246
https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516