{"id":17458,"date":"2026-09-05T02:31:08","date_gmt":"2026-09-04T18:31:08","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-57163"},"modified":"2026-09-05T02:31:08","modified_gmt":"2026-09-04T18:31:08","slug":"cve-2026-57163","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-57163","title":{"rendered":"CVE-2026-57163 &#8211; PJSIP is a free and open source multimedia communication library written in C. Prior to co"},"content":{"rendered":"<p>PJSIP is a free and open source multimedia communication library written in C. Prior to commit c4a151a, a stack buffer overflow exists in the GnuTLS TLS backend when parsing the Subject Alternative Name extension of a peer certificate (tls_cert_get_info() in ssl_sock_gtls.c). Only GnuTLS builds are affected (&#8211;with-gnutls); OpenSSL and Apple SecureTransport\/Network.framework builds are not affected. While extracting certificate information after a TLS handshake, an incorrect buffer-size value can cause an oversized SubjectAltName entry to be written past the end of a fixed-size stack buffer. A network-positioned attacker presenting a crafted certificate \u2014 a malicious server to a connecting client, or a malicious client to a server that requests certificates \u2014 can trigger this during the TLS handshake, before any SIP-level authentication. Impact may range from unexpected application termination to control flow hijack\/memory corruption. This issue has been patched via commit c4a151a.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PJSIP is a free and open source multimedia communication library written in C. Prior to commit c4a151a, a stack buffer overflow exists in the GnuTLS TLS backend when parsing the Subject Alternative Na<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17458","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}