Allocation of Resources Without Limits or Throttling Affecting tor package, versions <0.3.5.8-1
Threat Intelligence
EPSS
1.66% (88th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-DEBIAN10-TOR-337887
- published 21 Feb 2019
- disclosed 21 Feb 2019
Introduced: 21 Feb 2019
CVE-2019-8955 Open this link in a new tabHow to fix?
Upgrade Debian:10 tor to version 0.3.5.8-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tor package and not the tor package as distributed by Debian.
See How to fix? for Debian:10 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-8955
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8955
- https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312
- https://trac.torproject.org/projects/tor/ticket/29168
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html
- http://www.securityfocus.com/bid/107136
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-8955