CVE-2018-0490
moderate-risk
Published 2018-03-05
An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.
Do I need to act?
~
1.0% 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 Vendors
References (6)
Vendor Advisory
https://trac.torproject.org/projects/tor/ticket/25074
Third Party Advisory
https://www.debian.org/security/2018/dsa-4183
Vendor Advisory
https://trac.torproject.org/projects/tor/ticket/25074
Third Party Advisory
https://www.debian.org/security/2018/dsa-4183
48
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
3/34 · Minimal
Exposure
19/34 · Moderate