| Name | CVE-2018-0491 |
| Description | A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list. |
| 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 | fixed |
| stretch | 0.2.9.16-1 | fixed |
| stretch (security), stretch (lts) | 0.2.9.15-1 | fixed |
| buster (security), buster, buster (lts) | 0.3.5.16-1+deb10u1 | fixed |
| bullseye (security), bullseye | 0.4.5.16-1 | fixed |
| bookworm (security), bookworm | 0.4.7.16-1 | fixed |
| sid, trixie | 0.4.8.13-2 | 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 | (not affected) | | | |
| tor | source | jessie | (not affected) | | | |
| tor | source | stretch | (not affected) | | | |
| tor | source | (unstable) | 0.3.2.10-1 | | | |
Notes
[stretch] - tor <not-affected> (Only affects tor 0.3.2.x series and later)
[jessie] - tor <not-affected> (Only affects tor 0.3.2.x series and later)
[wheezy] - tor <not-affected> (Only affects tor 0.3.2.x series and later)
https://trac.torproject.org/projects/tor/ticket/25117
https://trac.torproject.org/projects/tor/ticket/24700
https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915
https://gitweb.torproject.org/tor.git/commit/?id=adaf3e9b89f62d68ab631b8f672d9bff996689b9