CVE-2021-3449 – NULL pointer deref in signature_algorithms processing
https://notcve.org/view.php?id=CVE-2021-3449
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. • http://www.openwall.com/lists/oss-security/2021/03/27/1 http://www.openwall.com/lists/oss-security/2021/03/27/2 http://www.openwall.com/lists/oss-security/2021/03/28/3 http://www.openwall.com/lists/oss-security/2021/03/28/4 https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-772220.pdf https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=fb9fa6b51defd48157eeb207f52181f735d96148 https://kb.pulse • CWE-476: NULL Pointer Dereference •
CVE-2011-2664
https://notcve.org/view.php?id=CVE-2011-2664
Unspecified vulnerability in Check Point Multi-Domain Management / Provider-1 NGX R65, R70, R71, and R75, and SmartCenter during installation on non-Windows machines, allows local users on the MDS system to overwrite arbitrary files via unknown vectors. Vulnerabilidad no especificada en Multi-Domain Management / Provider-1 NGX R65, R70, R71, y R75, y SmartCenter durante la instalación en máquinas no Windows, permite a usuarios locales en el sistema MDS sobrescribir archivos de su elección a través de vectores desconocidos. • http://secunia.com/advisories/45231 http://www.securityfocus.com/bid/48656 https://exchange.xforce.ibmcloud.com/vulnerabilities/68502 https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk63565 •