SB2020091125 - Red Hat Enterprise Linux 8 update for the httpd:2.4 module
Published: September 11, 2020 Updated: April 24, 2025
Security Bulletin ID
SB2020091125
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2020-9490)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing Cache-Digest header in HTTP/2 request. A remote attacker can pass specially crafted HTTP/2 request to the Apache HTTP Server, trigger the server to send the HTTP/2
PUSH and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.