CVE-2017-8822
low
CVSS v3
3.7
CVSS v4 NEW
—
VIR risk
3.7
Description
In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, relays (that have incompletely downloaded descriptors) can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012.
Predictions
Exploit likelihood
47%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 7 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0.3.1.9-1 |
| sid | Fixed | 0.3.1.9-1 |
| forky | Fixed | 0.3.1.9-1 |
| bullseye | Fixed | 0.3.1.9-1 |
| bookworm | Fixed | 0.3.1.9-1 |
| 9.0 | Affected | — |
| 8.0 | Affected | — |
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 0.3.1.9-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| tor_project | tor | {"endExcluding":"0.2.5.16"} | 0.2.5.16 |
References
- https://security.archlinux.org/ASA-201712-10
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516
- https://bugs.torproject.org/21534
- https://bugs.torproject.org/24333
- https://www.debian.org/security/2017/dsa-4054
- https://security-tracker.debian.org/tracker/CVE-2017-8822
CWEs
CWE-417
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.