SUSE SLES12 Security Update : openssl-1_1 (SUSE-SU-2021:0954-1)

This update for openssl-11 fixes the following security issue : 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 but includes a...

OPENSUSE-SU-2021:0476-1 Security update for openssl-1_1

This update for openssl-11 fixes the security issue: 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 but includes a signaturealgorithmscert...

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...

Null pointer dereference

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...

SUSE-SU-2021:0955-1 Security update for openssl-1_1

This update for openssl-11 fixes the security issue: 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 but includes a signaturealgorithmscert...

SUSE-SU-2021:0954-1 Security update for openssl-1_1

This update for openssl-11 fixes the following security issue: 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 but includes a...

CVE-2021-3450 CA certificate check bypass with X509_V_FLAG_X509_STRICT

The X509VFLAGX509STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an...

CVE-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...

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...

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...

Ubuntu 18.04 LTS / 20.04 LTS : OpenSSL vulnerability (USN-4891-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4891-1 advisory. It was discovered that OpenSSL incorrectly handled certain renegotiation ClientHello messages. A remote attacker could use this issue to cause OpenSSL...

OpenSSL -- Multiple vulnerabilities

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...

OpenSSL TLS Server Crash (NULL pointer dereference) — 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...

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...

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...

CVE-2020-13482

A flaw was found in rubygem-em-http-request. The eventmachine library does not verify the hostname in a TLS server certificate which can allow an attacker to perform a man-in-the-middle attack. The highest threat from this vulnerability is to data confidentiality and integrity. Mitigation Red Hat...

USN-4453-1: OpenJDK 8 vulnerabilities

Johannes Kuhn discovered that OpenJDK 8 incorrectly handled access control contexts. An attacker could possibly use this issue to execute arbitrary code. CVE-2020-14556 Philippe Arteau discovered that OpenJDK 8 incorrectly verified names in TLS server's X.509 certificates. An attacker could...

Ubuntu 18.04 LTS / 20.04 LTS : OpenJDK vulnerabilities (USN-4433-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4433-1 advisory. Johannes Kuhn discovered that OpenJDK incorrectly handled access control contexts. An attacker could possibly use this issue to execute...

SUSE-SU-2020:1584-1 Security update for gnutls

This update for gnutls fixes the following issues: - CVE-2020-13777: Fixed an insecure session ticket key construction which could have made the TLS server to not bind the session ticket encryption key with a value supplied by the application until the initial key rotation, allowing an attacker t...

CVE-2020-13482

EM-HTTP-Request 1.1.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified...