CVE-2017-0375

moderate-risk
Published 2017-06-09

The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.

Do I need to act?

~
1.4% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Tor

Affected Vendors

Torproject

References (8)

Third Party Advisory http://www.securityfocus.com/bid/99017
Issue Tracking https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d...
Mailing List https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html
Issue Tracking https://trac.torproject.org/projects/tor/ticket/22493
Third Party Advisory http://www.securityfocus.com/bid/99017
Issue Tracking https://github.com/torproject/tor/commit/79b59a2dfcb68897ee89d98587d09e55f07e68d...
Mailing List https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html
Issue Tracking https://trac.torproject.org/projects/tor/ticket/22493
35
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 4/34 · Minimal
Exposure 5/34 · Minimal