SB20210120106 - Insufficient verification of data authenticity in dnsmasq (Alpine package)
Published: January 20, 2021
Security Bulletin ID
SB20210120106
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2020-25684)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a lack of proper address/port check within the "reply_query" function. A remote attacker can perform a DNS cache poisoning attack.
Remediation
Install update from vendor's website.