Use After Free Affecting tor package, versions <0.3.2.10-1
Threat Intelligence
Exploit Maturity
Mature
EPSS
4.24% (93rd
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-370839
- published 5 Mar 2018
- disclosed 5 Mar 2018
Introduced: 5 Mar 2018
CVE-2018-0491 Open this link in a new tabHow to fix?
Upgrade Debian:10 tor to version 0.3.2.10-1 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.
A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.
References
- https://security-tracker.debian.org/tracker/CVE-2018-0491
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915
- https://trac.torproject.org/projects/tor/ticket/24700
- https://trac.torproject.org/projects/tor/ticket/25117
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0491
- https://www.exploit-db.com/exploits/44994/
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-0491
- https://www.exploit-db.com/exploits/44994