CVE-2021-28089 — Uncontrolled Resource Consumption in TOR

CWE-400 — Uncontrolled Resource Consumption7 documents6 sources
Severity
7.5HIGHNVD
EPSS
1.3%
top 20.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Torproject TORFedoraproject Fedora
Timeline
PublishedMar 19
Latest updateOct 4

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDtorproject/tor0.4.4.4 — 0.4.4.8+6
▶Debiantorproject/tor< 0.4.5.7-1+3
▶Ubuntutorproject/tor< 0.2.4.27-1ubuntu0.1+esm2+3

Also affects: Fedora 33

🔴Vulnerability Details

4
OSV
tor vulnerabilities↗2022-10-04
▶
GHSA
GHSA-4457-rx56-p82r: Tor before 0↗2022-05-24
▶
CVEList
CVE-2021-28089: Tor before 0↗2021-03-19
▶
OSV
CVE-2021-28089: Tor before 0↗2021-03-19
▶

📋Vendor Advisories

2
Ubuntu
Tor vulnerabilities↗2022-10-04
▶
Debian
CVE-2021-28089: tor - Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to ...↗2021
▶
CVE-2021-28089 — Uncontrolled Resource Consumption | cvebase