{"id":19626,"date":"2022-05-18T08:11:00","date_gmt":"2022-05-18T08:11:00","guid":{"rendered":"https:\/\/nsfocusglobal.com\/?p=19626"},"modified":"2026-04-17T18:07:44","modified_gmt":"2026-04-17T18:07:44","slug":"multiple-openssl-security-vulnerabilities-alerts","status":"publish","type":"post","link":"https:\/\/nsfocusglobal.com\/pt-br\/multiple-openssl-security-vulnerabilities-alerts\/","title":{"rendered":"Multiple OpenSSL Security Vulnerabilities Alerts"},"content":{"rendered":"\n

Overview<\/h2>\n\n\n\n

Recently, NSFOCUS CERT found that OpenSSL issued a security notice, which fixed multiple security vulnerabilities in OpenSSL products. OpenSSL is an open source software library package. Applications can use this package to communicate securely, avoid eavesdropping, and confirm the identity of the other end of the connection. It is widely used on web servers on the Internet. Relevant users are requested to take measures for protection.<\/p>\n\n\n\n

OpenSSL Remote Code Execution Vulnerability (CVE-2022-1292):<\/strong><\/p>\n\n\n\n

Due to an issue with the c_rehash script not properly sanitizing shell metacharacters, and some operating systems distribute this script in an automated fashion. An unauthenticated attacker could use scripts to construct malicious packets to trigger the vulnerability, thereby executing arbitrary system commands on the target system.<\/p>\n\n\n\n

Openssl Certificate Authentication Error Vulnerability (CVE-2022-1343)<\/strong><\/p>\n\n\n\n

Because the OCSP_basic_verify function has an error in verifying some certificates, an unauthorized attacker can use this vulnerability to construct malicious data for certificate spoofing attacks, so as to successfully verify the illegal response signature certificate.<\/p>\n\n\n\n

OpenSSL Denial of Service Vulnerability (CVE-2022-1473):<\/strong><\/p>\n\n\n\n

Due to a flaw in the OPENSSL_LH_flush() function, when a long-lived process periodically decodes a certificate or key, the memory usage will be expanded indefinitely. An unauthenticated attacker could trigger the vulnerability by crafting a malicious packet that could crash the server and achieve a denial of service.<\/p>\n\n\n\n

Openssl Encryption Error Vulnerability (CVE-2022-1434)<\/strong><\/p>\n\n\n\n

Since the OpenSSL 3.0 implementation of the RC4-MD5 cipher suite incorrectly used AAD data as the MAC key, making the MAC key predictable. Unauthorized attackers can construct malicious data to conduct man-in-the-middle attacks to control the communication between the two parties.<\/p>\n\n\n\n

Reference link:<\/p>\n\n\n\n

https:\/\/www.openssl.org\/news\/vulnerabilities.html<\/a><\/p>\n\n\n\n

Scope of Impact<\/h2>\n\n\n\n

CVE-2022-1292<\/strong><\/p>\n\n\n\n

Affected version:<\/p>\n\n\n\n