SB2021071104 - Fedora 35 update for opendmarc
Published: July 11, 2021
Security Bulletin ID
SB2021071104
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) NULL pointer dereference (CVE-ID: CVE-2021-34555)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when parsing a multi-value From header field. A remote attacker can send a specially crafted message and perform a denial of service attack.
Remediation
Install update from vendor's website.