Reachable Assertion Affecting tor package, versions <0.2.4.27-1ubuntu0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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 IDSNYK-UBUNTU1404-TOR-370837
- published9 Jun 2017
- disclosed9 Jun 2017
Introduced: 9 Jun 2017
CVE-2017-0376 (opens in a new tab)How to fix?
Upgrade Ubuntu:14.04 tor to version 0.2.4.27-1ubuntu0.1 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 Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-0376
- https://lists.torproject.org/pipermail/tor-announce/2017-June/000131.html
- https://trac.torproject.org/projects/tor/ticket/22494
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0376
- http://www.debian.org/security/2017/dsa-3877
- https://security-tracker.debian.org/tracker/CVE-2017-0376
- https://github.com/torproject/tor/commit/56a7c5bc15e0447203a491c1ee37de9939ad1dcd