Vulnerability Description
In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | < 0.3.3.12 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html
- http://www.securityfocus.com/bid/107136Third Party AdvisoryVDB Entry
- https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312Vendor Advisory
- https://trac.torproject.org/projects/tor/ticket/29168Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html
- http://www.securityfocus.com/bid/107136Third Party AdvisoryVDB Entry
- https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312Vendor Advisory
- https://trac.torproject.org/projects/tor/ticket/29168Vendor Advisory
FAQ
What is CVE-2019-8955?
CVE-2019-8955 is a vulnerability with a CVSS score of 7.5 (HIGH). In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the ...
How severe is CVE-2019-8955?
CVE-2019-8955 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-2019-8955?
Check the references section above for vendor advisories and patch information. Affected products include: Torproject Tor.