Vulnerability Details : CVE-2021-38385
Potential exploit
Tor before 0.3.5.16, 0.4.5.10, and 0.4.6.7 mishandles the relationship between batch-signature verification and single-signature verification, leading to a remote assertion failure, aka TROVE-2021-007.
Products affected by CVE-2021-38385
- cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
- cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38385
0.47%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38385
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-38385
-
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-38385
-
https://bugs.torproject.org/tpo/core/tor/40078
Potential consensus divergence from Ed25519 edge cases (#40078) · Issues · The Tor Project / Core / Tor · GitLabExploit;Issue Tracking;Vendor Advisory
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https://blog.torproject.org
Tor Blog | The Tor ProjectRelease Notes;Vendor Advisory
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https://security.gentoo.org/glsa/202305-11
Tor: Multiple Vulnerabilities (GLSA 202305-11) — Gentoo security
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https://blog.torproject.org/node/2062
New Stable Releases: Tor 0.3.5.16, 0.4.5.10 and 0.4.6.7 | Tor BlogRelease Notes;Vendor Advisory
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