SB2020012426 - Multiple vulnerabilities in tor.eff Tor

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Main Vulnerability Database SB2020012426

SB2020012426 - Multiple vulnerabilities in tor.eff Tor

Published: January 24, 2020 Updated: August 8, 2020

Security Bulletin ID SB2020012426
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) Input validation error (CVE-ID: CVE-2015-2928)

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

The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.


2) Input validation error (CVE-ID: CVE-2015-2929)

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

The Hidden Service (HS) client implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote servers to cause a denial of service (assertion failure and application exit) via a malformed HS descriptor.


Remediation

Install update from vendor's website.

References