CVE-2021-28090
Published: 19 March 2021
Tor before 0.4.5.7 allows a remote attacker to cause Tor directory authorities to exit with an assertion failure, aka TROVE-2021-002.
Priority
Status
Package | Release | Status |
---|---|---|
tor Launchpad, Ubuntu, Debian |
focal |
Released
(0.4.2.7-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
jammy |
Not vulnerable
(0.4.6.10-1)
|
|
lunar |
Not vulnerable
(0.4.7.10-1)
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
upstream |
Released
(0.3.5.14, 0.4.4.8, 0.4.5.7)
|
|
xenial |
Released
(0.2.9.14-1ubuntu1~16.04.3+esm1)
Available with Ubuntu Pro |
|
impish |
Ignored
(end of life)
|
|
trusty |
Released
(0.2.4.27-1ubuntu0.1+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
kinetic |
Not vulnerable
(0.4.7.10-1)
|
|
bionic |
Released
(0.3.2.10-1ubuntu0.2~esm2)
Available with Ubuntu Pro |
|
mantic |
Not vulnerable
(0.4.7.10-1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | Low |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28090
- https://blog.torproject.org/node/2009
- https://bugs.torproject.org/tpo/core/tor/40316
- https://gitlab.torproject.org/tpo/core/tor/-/commit/890ae4fb1adfa13e37aaf5261e089e8c195a75cf
- https://ubuntu.com/security/notices/USN-5036-1
- NVD
- Launchpad
- Debian