clone-cert

clone-cert.sh これは、TLSでラップされたTCPポートに関連付けられたX.509証明書を取得し、opensslを使用して公開鍵を置き換えて署名を修正することで、類似の証明書を作成するシンプルなシェルスクリプトです。 これは特に、自己署名証明書がなぜセキュリティを提供できないかをデモンストレーションしたい場合に便利です。もちろん、クローンされた証明書のフィンガープリントは異なります...しかし、自己署名証明書のフィンガープリントを手動で確認する人はどれだけいるでしょうか？...

qark

Quick Android Review Kit This tool is designed to look for several security related Android application vulnerabilities, either in source code or packaged APKs. The tool is also capable of creating "Proof-of-Concept" deployable APKs and/or ADB commands, capable of exploiting many of the...

CVE-2022-0778

CVE-2022-0778 该漏洞会在解析椭圆曲线密钥时触发 OpenSSL 中 BNmodsqrt 函数的无限循环。这意味着一个恶意构造的 X.509 证书可以对任何未修补的服务器发起 DoS 攻击。 漏洞的核心在于解析以压缩格式表示点的 EC 密钥过程中：在解析此类密钥时，OpenSSL 会尝试扩展压缩点，试图计算曲线定义素数 p 的模平方根。然而，p 的素性未在任何地方检查，即使在需要它的 BNmodsqrt 中也不例外；因此，由于 p 不是预期的素数，实现中的一个错误会导致无限循环。 中文版说明可以见我的博客OpenSSL CVE-2022-0778漏洞问题复现与非法证书构造 致...

CVE-2026-95616

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's...

CVE-2026-95616

Apache WSS4J is vulnerable to an integer overflow in its DER bounds check, which allows an oversized allocation to bypass validation. An unauthenticated attacker can exploit this by sending a SOAP message containing an X.509 certificate where the SubjectKeyIdentifier extension declares a length o...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The NetX Secure library contains a vulnerability in the _nx_secure_x509_asn1_tlv_block_parse() function, which handles ASN.1 TLV blocks during X.509 certificate parsing. The root cause is an out-of-bounds read because the function reads a one-byte ASN.1 tag from the buffer before verifying that t...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

EUVD-2026-89113

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-102758

The nxsecurex509asn1tlvblockparse function parses ASN.1 TLV tag-length-value blocks out of DER-encoded data. It is the primitive underneath all X.509 certificate parsing in NetX Secure, and therefore runs on certificates supplied by a remote peer during the TLS handshake. The function reads the...

CVE-2026-84783

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

CVE-2026-84783

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

EUVD-2026-89014

Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is still using it. Impact summary: A remote, unauthenticated peer could crash a multi-threaded TLS client, or a multi-threaded TLS server...

Linux Distros Unpatched Vulnerability : CVE-2026-84783

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: The first concurrent use of the same X.509 certificate by several threads may cause its cached extension data to be freed while another thread is...

CVE-2026-6789-Stack-Buffer-Overflow-in-Embedded-TLS-Certificate-Parser

9. CVE-2026-6789 – Desbordamiento de búfer de pila en el analizador de certificados TLS embebido Resumen Una popular librería TLS ligera simulada contiene un desbordamiento de búfer de pila al analizar extensiones de Subject Alternative Name de certificados X.509 con un campo de longitud...

Important: Red Hat Security Advisory: libreswan security update

An update for libreswan is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

Linux Distros Unpatched Vulnerability : CVE-2026-89133

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wolfSSL versions 5.9.2 and earlier contain a flaw in the X.509 certificate validation logic where it fails to properly enforce NameConstraints extensions when...