Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | <= 0.2.9.14 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-preveVendor Advisory
- https://trac.torproject.org/projects/tor/ticket/25074Vendor Advisory
- https://www.debian.org/security/2018/dsa-4183Third Party Advisory
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-preveVendor Advisory
- https://trac.torproject.org/projects/tor/ticket/25074Vendor Advisory
- https://www.debian.org/security/2018/dsa-4183Third Party Advisory
FAQ
What is CVE-2018-0490?
CVE-2018-0490 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2018-0490?
CVE-2018-0490 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-0490?
Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor, Debian Debian Linux.