CVE-2021-28089
tor: Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, ak...
CVE-2021-28089 is fixed in 2 products on 1 platform, first by tor 0.3.2.10-1ubuntu0.2~esm2, released August 29, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0167
76th percentile
Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| tor · Ubuntu 18.04.6 LTS (bionic) | 0.3.2.10-1ubuntu0.2~esm2 | tor 0.3.2.10-1ubuntu0.2~esm2 | Aug 29, 2021 |
| tor · Ubuntu 20.04 LTS (focal) | 0.4.2.7-1ubuntu0.1~esm1 | tor 0.4.2.7-1ubuntu0.1~esm1 | Aug 29, 2021 |
| tor-geoipdb · Ubuntu 18.04.6 LTS (bionic) | 0.3.2.10-1ubuntu0.2~esm2 | tor-geoipdb 0.3.2.10-1ubuntu0.2~esm2 | Aug 29, 2021 |
| tor-geoipdb · Ubuntu 20.04 LTS (focal) | 0.4.2.7-1ubuntu0.1~esm1 | tor-geoipdb 0.4.2.7-1ubuntu0.1~esm1 | Aug 29, 2021 |
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