BIT-NODE-2021-3449 NULL pointer deref in signature_algorithms processing

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

OpenSSL: CVE-2021-3449 NULL pointer deref in signature_algorithms processing

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GHSA-83MX-573X-5RW9 openssl-src NULL pointer Dereference in signature_algorithms processing

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

openssl-src NULL pointer Dereference in signature_algorithms processing

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

RUSTSEC-2021-0055 NULL pointer deref in signature_algorithms processing

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

NULL pointer deref in signature_algorithms processing

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

Important: Red Hat Security Advisory: Red Hat JBoss Web Server 5.4.2 Security Update

Updated Red Hat JBoss Web Server 5.4.2 packages are now available for Red Hat Enterprise Linux 7, and Red Hat Enterprise Linux 8. Red Hat Product Security has rated this release as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

FreeBSD : Node.js -- April 2021 Security Releases (c0c1834c-9761-11eb-acfd-0022489ad614)

Node.js reports : OpenSSL - CA certificate check bypass with X509VFLAGX509STRICT High CVE-2021-3450 This is a vulnerability in OpenSSL which may be exploited through Node.js. You can read more about it in https://www.openssl.org/news/secadv/20210325.txt OpenSSL - NULL pointer deref in...

Tenable.sc 5.16.0 / 5.17.0 OpenSSL DoS (TNS-2021-06)

According to its self-reported version, the Tenable.sc application installed on the remote host is version 5.16.0 or 5.17.0 and affected by the following OpenSSL denial of service vulnerability: - An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from...

Node.js -- April 2021 Security Releases

Node.js reports: OpenSSL - CA certificate check bypass with X509VFLAGX509STRICT High CVE-2021-3450 This is a vulnerability in OpenSSL which may be exploited through Node.js. You can read more about it in https://www.openssl.org/news/secadv/20210325.txt OpenSSL - NULL pointer deref in...

Important: openssl security update

OpenSSL is a toolkit that implements the Secure Sockets Layer SSL and Transport Layer Security TLS protocols, as well as a full-strength general-purpose cryptography library. Security Fixes: openssl: NULL pointer dereference in signaturealgorithms processing CVE-2021-3449 openssl: CA certificate...

FreeBSD : OpenSSL -- Multiple vulnerabilities (5a668ab3-8d86-11eb-b8d6-d4c9ef517024)

The OpenSSL project reports : High: CA certificate check bypass with X509VFLAGX509STRICT CVE-2021-3450The X509VFLAGX509STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. High: NULL pointer deref in signaturealgorithms...

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 signaturealgorithms extension where it was present in the initial ClientHello, but includes a signaturealgorithmscert extension then a NU...

OpenSSL ClientHello signature_algorithms Extension Denial of Service (CVE-2015-0291)

A denial of service vulnerability exists in OpenSSL. The vulnerability is due to a null pointer dereference when an OpenSSL server application, during renegotiation, receives and processes an invalid signaturealgorithms extension in a Client Hello handshake message. A remote, unauthenticated...

CVE-2015-0291

The sigalgs implementation in t1lib.c in OpenSSL 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash by using an invalid signaturealgorithms extension in the ClientHello message during a renegotiation...