golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

K83623027: OpenSSL vulnerability CVE-2021-3449

Security Advisory Description 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...

SUSE CVE-2009-0049

Belgian eID middleware eidlib 2.6.0 and earlier does not properly check the return value from the OpenSSL EVPVerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to...

SUSE 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...

SUSE CVE-2015-0294

GnuTLS before 3.3.13 does not validate that the signature algorithms match when importing a certificate...

SUSE CVE-2016-2850

Botan 1.11.x before 1.11.29 does not enforce TLS policy for 1 signature algorithms and 2 ECC curves, which allows remote attackers to conduct downgrade attacks via unspecified vectors...

SUSE CVE-2018-12433

DISPUTED cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to either the local machine or a different virtual machine on the same physical host. NOTE: the...

SUSE 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...

golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

golang: crash in a golang.org/x/crypto/ssh server

A broken cryptographic algorithm flaw was found in golang.org/x/crypto/ssh. This issue causes a client to fail authentication with RSA keys to servers that reject signature algorithms based on SHA-2, enabling an attacker to crash the server, resulting in a loss of availability...

PT-2022-17425 · Wolfssl +1 · Wolfssl +1

Name of the Vulnerable Software and Affected Versions: wolfSSL versions prior to 5.2.0 Description: The issue allows certificate validation to be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig algo field differs between the certificate...

Security Bulletin: Vulnerability in OpenSSL affects Power Hardware Management Console (CVE-2021-3449).

Summary OpenSSL is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVE. Vulnerability Details CVEID: CVE-2021-3449 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by a NULL pointer dereference in signaturealgorithms processing. By sending a...

Automatic Cipher Suite Ordering in crypto/tls

This is the first article I wrote for the Go blog !! about how TLS cipher suites configuration got so complicated, and how weve made it way easier in Go 1.17. The Go standard library provides crypto/tls, a robust implementation of Transport Layer Security TLS, the most important security protocol...

nettle: Out of bounds memory access in signature verification

A flaw was found in Nettle, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an...

BSA-2020-948

Security Advisory ID : BSA-2020-948 Component : OpenSSL Revision : 1.0 Server or client applications that call the SSLcheckchain function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signaturealgorithmscert" TLS extensio...

OESA-2021-1147 openssl security update

OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security TLS and Secure Sockets Layer SSL protocols. Security Fixes: An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation...

openssl: NULL pointer dereference in signature_algorithms processing

A flaw was found in openssl. A server crash and denial of service attack could occur if a client sends a TLSv1.2 renegotiation ClientHello and omits the signaturealgorithms extension but includes a signaturealgorithmscert extension. The highest threat from this vulnerability is to system...