{"id":81948,"date":"2026-07-14T02:46:47","date_gmt":"2026-07-13T23:16:47","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-58101-cryptopensslx509-versions-before-2-1-3-for-perl-allow-denial-of-service-via-null-pointer-dereference\/"},"modified":"2026-07-14T02:46:47","modified_gmt":"2026-07-13T23:16:47","slug":"cve-2026-58101-cryptopensslx509-versions-before-2-1-3-for-perl-allow-denial-of-service-via-null-pointer-dereference","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-58101-cryptopensslx509-versions-before-2-1-3-for-perl-allow-denial-of-service-via-null-pointer-dereference\/","title":{"rendered":"CVE-2026-58101 &#8211; Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference"},"content":{"rendered":"<p>CVE ID :CVE-2026-58101<\/p>\n<p>  Published : July 13, 2026, 11:16 p.m. | 13\u00a0minutes ago<\/p>\n<p>  Description :Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference.<\/p>\n<p>X509V3_EXT_d2i(ext) returns NULL when an extension&#8217;s DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid-&gt;keyid, which is NULL for an empty AKI SEQUENCE (DER 30 00) even when the parse succeeds.<\/p>\n<p>A caller invoking an affected helper on an extension from an untrusted certificate triggers a SIGSEGV that crashes the Perl process.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-58101 Published : July 13, 2026, 11:16 p.m. | 13\u00a0minutes ago Description :Crypt::OpenSSL::X509 versions before 2.1.3 for Perl allow denial of service via NULL pointer dereference. X509V3_EXT_d2i(ext) returns NULL when an extension&#8217;s DER value fails to parse. basicC, ia5string, and auth_att dereference its result without a NULL check. keyid_data also dereferences akid-&gt;keyid, which &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-81948","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=81948"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81948\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}