SB2021051729 - Fedora 34 update for composer
Published: May 17, 2021
Security Bulletin ID
SB2021051729
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Code Injection (CVE-ID: CVE-2021-29472)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation of URLs for Mercurial repositories in the root composer.json and package source download URLs. A remote attacker can inject a specially crafted URL that will allow command execution in the HgDriver if hg/Mercurial is installed on the system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.