| Name | CVE-2020-15572 |
| Description | Tor before 0.4.3.6 has an out-of-bounds memory access that allows a remote denial-of-service (crash) attack against Tor instances built to use Mozilla Network Security Services (NSS), aka TROVE-2020-001. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tor (PTS) | jessie, jessie (lts) | 0.2.5.16-1 | vulnerable |
| stretch | 0.2.9.16-1 | vulnerable |
| stretch (security), stretch (lts) | 0.2.9.15-1 | vulnerable |
| buster | 0.3.5.16-1 | vulnerable |
| buster (security) | 0.3.5.16-1+deb10u1 | vulnerable |
| bullseye (security), bullseye | 0.4.5.16-1 | fixed |
| bookworm (security), bookworm | 0.4.7.16-1 | fixed |
| trixie | 0.4.8.10-1 | fixed |
| sid | 0.4.8.11-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tor | source | (unstable) | 0.4.3.6-1 | unimportant | | |
Notes
Tor in Debian doesn't use NSS
https://blog.torproject.org/new-release-tor-03511-0428-0436-security-fixes