CVE-2021-38385

high

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

8.0

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-38385

OS impact

OS	Version	Status	Fixed in
arch		fixed	`0.4.6.7-1`
debian	bookworm	fixed	`0.4.5.10-1`
debian	bullseye	fixed	`0.4.5.10-1~deb11u1`
debian	forky	fixed	`0.4.5.10-1`
debian	sid	fixed	`0.4.5.10-1`
debian	trixie	fixed	`0.4.5.10-1`

References

https://security-tracker.debian.org/tracker/CVE-2021-38385

Verify integrity in audit chain (admin only). AS-IS.