SB2022011956 - Remote code execution in libspf2
Published: January 19, 2022 Updated: August 22, 2022
Security Bulletin ID
SB2022011956
Severity
High
Patch available
NO
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) Heap-based buffer overflow (CVE-ID: CVE-2021-33913)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the spf_expand.c when parsing SPF DNS records. A remote attacker can send an email to the affected server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.