Reachable Assertion in Tor - CVE-2017-0375

 

Reachable Assertion in Tor - CVE-2017-0375

Published: June 9, 2017 / Updated: July 18, 2020


Vulnerability identifier: #VU31417
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-0375
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: tor.eff.org
Affected software:
Tor

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The hidden-service feature in Tor before 0.3.0.8 allows a denial of service (assertion failure and daemon exit) in the relay_send_end_cell_from_edge_ function via a malformed BEGIN cell.


How to mitigate CVE-2017-0375

Install update from vendor's website.

Sources