SB2020112924 - Information disclosure in firefox (Alpine package)

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2020112924

SB2020112924 - Information disclosure in firefox (Alpine package)

Published: November 29, 2020

Security Bulletin ID SB2020112924
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Information disclosure (CVE-ID: CVE-2020-26966)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the way Firefox performs searches of single-word queries. Searching for a single word from the address bar cause an mDNS request to be sent on the local network searching for a hostname consisting of that string. A remote attacker with the local network can intercept the DNS query and obtain information, searched via browser address bar.

Note, the vulnerability affects Windows users only.


Remediation

Install update from vendor's website.

References