April 16, 2025
Proactive Defense: The Importance of Incident Response Planning in Cybersecurity
Rewterz Threat Advisory – ICS: Delta Electronics CNCSoft-B DOPSoft Vulnerability
September 11, 2023Rewterz Threat Alert – “Stealc” – An Information Stealer Malware – Active IOCs
September 11, 2023Rewterz Threat Advisory – ICS: Delta Electronics CNCSoft-B DOPSoft Vulnerability
September 11, 2023Rewterz Threat Alert – “Stealc” – An Information Stealer Malware – Active IOCs
September 11, 2023
Severity
High
Analysis Summary
CVE-2023-4807
OpenSSL is vulnerable to a denial of service, caused by a state corruption flaw in the POLY1305 MAC (message authentication code) implementation, when running on newer X86_64 processors supporting the AVX512-IFMA instructions. By sending a specially crafted request, a local attacker could exploit this vulnerability to cause the application to crash.
Impact
- Denial of Service
Indicators Of Compromise
CVE
- CVE-2023-4807
Affected Vendors
OpenSSL
Affected Products
- OpenSSL 1.1.1
- OpenSSL OpenSSL 3.0.0
- OpenSSL 3.1.0
- OpenSSL 1.1.1v
Remediation
Refer to OpenSSL Security Advisory for patch, upgrade or suggested workaround information.
