SB2021040127 - Information disclosure in curl (Alpine package)
Published: April 1, 2021
Security Bulletin ID
SB2021040127
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-2021-22876)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to libcurl does not strip off user credentials from the URL when automatically populating the Referer:
HTTP request header field in outgoing HTTP requests and therefore
risks leaking sensitive data to the server that is the target of the
second HTTP request.
Remediation
Install update from vendor's website.