https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 10 Oct 2026 16:22:15 +0000 https://cve.radiocsirt.org/vuln/cve-2023-0465 <p><strong>Affected:</strong> OpenSSL</p> <p>Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks.</p> <p>Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether.</p> <p>Policy processing is disabled by default but can be enabled by passing the `-policy&#39; argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()&#39; function.</p> <p><strong>Affected:</strong> OpenSSL</p> <p>Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks.</p> <p>Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether.</p> <p>Policy processing is disabled by default but can be enabled by passing the `-policy&#39; argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()&#39; function.</p> https://cve.radiocsirt.org/vuln/cve-2023-0465 https://cve.radiocsirt.org/vuln/usn-6039-1 <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: openssl, Ubuntu:18.04:LTS: openssl, Ubuntu:18.04:LTS: openssl1.0, Ubuntu:20.04:LTS: openssl, Ubuntu:22.04:LTS: openssl</p> <p>It was discovered that OpenSSL was not properly managing file locks when processing policy constraints. If a user or automated system were tricked into processing a certificate chain with specially crafted policy constraints, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3996)</p> <p>David Benjamin discovered that OpenSSL was not properly performing the verification of X.509 certificate chains that include policy constraints, which could lead to excessive resource consumption. If a user or automated system were tricked into processing a specially crafted X.509 certificate chain that includes policy constraints, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-0464)</p> <p>David Benjamin discovered that OpenSSL was not properly handling invalid certificate policies in leaf certificates, which would result in certain policy checks being skipped for the certificate. If a user or automated system were tricked into processing a specially crafted certificate, a remote attacker could possibly use this issue to assert invalid certificate policies and circumvent policy checking. (CVE-2023-0465)</p> <p>David Benjamin discovered that OpenSSL incorrectly documented the functionalities of function X509_VERIFY_PARAM_add0_policy, stating that it would implicitly enable certificate policy checks when doing certificate verifications, contrary to its implementation. This…</p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: openssl, Ubuntu:18.04:LTS: openssl, Ubuntu:18.04:LTS: openssl1.0, Ubuntu:20.04:LTS: openssl, Ubuntu:22.04:LTS: openssl</p> <p>It was discovered that OpenSSL was not properly managing file locks when processing policy constraints. If a user or automated system were tricked into processing a certificate chain with specially crafted policy constraints, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3996)</p> <p>David Benjamin discovered that OpenSSL was not properly performing the verification of X.509 certificate chains that include policy constraints, which could lead to excessive resource consumption. If a user or automated system were tricked into processing a specially crafted X.509 certificate chain that includes policy constraints, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-0464)</p> <p>David Benjamin discovered that OpenSSL was not properly handling invalid certificate policies in leaf certificates, which would result in certain policy checks being skipped for the certificate. If a user or automated system were tricked into processing a specially crafted certificate, a remote attacker could possibly use this issue to assert invalid certificate policies and circumvent policy checking. (CVE-2023-0465)</p> <p>David Benjamin discovered that OpenSSL incorrectly documented the functionalities of function X509_VERIFY_PARAM_add0_policy, stating that it would implicitly enable certificate policy checks when doing certificate verifications, contrary to its implementation. This…</p> https://cve.radiocsirt.org/vuln/usn-6039-1