SB2020063034 - Information disclosure in alpine (Alpine package)
Published: June 30, 2020
Security Bulletin ID
SB2020063034
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2020-14929)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Remediation
Install update from vendor's website.