SB2017060910 - Multiple vulnerabilities in tor.eff Tor 

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Main Vulnerability Database SB2017060910

SB2017060910 - Multiple vulnerabilities in tor.eff Tor

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

Security Bulletin ID SB2017060910
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Reachable Assertion (CVE-ID: CVE-2017-0375)

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.


2) Reachable Assertion (CVE-ID: CVE-2017-0376)

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 connection_edge_process_relay_cell function via a BEGIN_DIR cell on a rendezvous circuit.


Remediation

Install update from vendor's website.

References