PT-2015-1688 · Openssl +1 · Openssl +3

Name of the Vulnerable Software and Affected Versions: OpenSSL versions 1.0.2 through 1.0.2a excluding 1.0.2a Description: The issue allows remote attackers to cause a denial of service daemon crash via a ClientKeyExchange message with a length of zero, when client authentication and an ephemeral...

Vulnerability in OpenSSL - Empty CKE with client auth and DHE

Empty CKE with client auth and DHE. If client auth is used then a server can seg fault in the event of a DHE ciphersuite being selected and a zero length ClientKeyExchange message being sent by the client. This could be exploited in a DoS attack...

SUSE-SU-2015:0553-2 Security update for compat-openssl098

OpenSSL was updated to fix various security issues. Following security issues were fixed: - CVE-2015-0209: A Use After Free following d2iECPrivatekey error was fixed which could lead to crashes for attacker supplied Elliptic Curve keys. This could be exploited over SSL connections with client...

AIX OpenSSL Advisory : openssl_advisory12.asc (FREAK)

The version of OpenSSL installed on the remote AIX host is affected by the following vulnerabilities : - The BIGNUM squaring BNsqr implementation does not properly calculate the square of a BIGNUM value. This allows remote attackers to defeat cryptographic protection mechanisms. CVE-2014-3570 - A...

foreman-proxy: failure to verify SSL certificates

It was discovered that foreman-proxy, when running in SSL-secured mode, did not correctly verify SSL client certificates. This could permit any client with access to the API to make requests and perform actions otherwise restricted...

Ubuntu 14.04 LTS : OpenSSL vulnerabilities (USN-2459-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2459-1 advisory. Pieter Wuille discovered that OpenSSL incorrectly handled Bignum squaring. CVE-2014-3570 Markus Stenberg discovered that OpenSSL incorrectly handled...

USN-2459-1 openssl vulnerabilities

Pieter Wuille discovered that OpenSSL incorrectly handled Bignum squaring. CVE-2014-3570 Markus Stenberg discovered that OpenSSL incorrectly handled certain crafted DTLS messages. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. CVE-2014-3571...

USN-2459-1: OpenSSL vulnerabilities

Pieter Wuille discovered that OpenSSL incorrectly handled Bignum squaring. CVE-2014-3570 Markus Stenberg discovered that OpenSSL incorrectly handled certain crafted DTLS messages. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service. CVE-2014-3571...

MGASA-2015-0022 Updated openssl packages fix security vulnerabilities

A carefully crafted DTLS message can cause a segmentation fault in OpenSSL due to a NULL pointer dereference. This could lead to a Denial Of Service attack CVE-2014-3571. A memory leak can occur in the dtls1bufferrecord function under certain conditions. In particular this could occur if an...

CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

OpenSSL Fixes Eight Security Vulnerabilities

The OpenSSL Project has released several new versions of the software that fix eight security vulnerabilities, including several certificate issues and a couple of denial-of-service flaws. The patches included in OpenSSL 1.0.0p, 1.0.1k and 0.98zd are not for critical or high-risk vulnerabilities,...

Vulnerability in OpenSSL - DH client certificates accepted without verification [Server]

An OpenSSL server will accept a DH certificate for client authentication without the certificate verify message. This effectively allows a client to authenticate without the use of a private key. This only affects servers which trust a client certificate authority which issues certificates...

UBUNTU-CVE-2015-0205

The ssl3getcertverify function in s3srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman DH certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via...

xorg-x11-server: denial of service due to unchecked malloc in client authentication

It was found that the X.Org server did not properly handle SUN-DES-1 Secure RPC authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request...

xorg-x11-server security update

1.1.1-48.107.0.1.el511 - Added oracle-enterprise-detect.patch - Replaced 'Red Hat' in spec file 1.1.1-48.107 - CVE-2014-8091 denial of service due to unchecked malloc in client authentication 1168680 - CVE-2014-8092 integer overflow in X11 core protocol requests when calculating memory needs for...

openSUSE Security Update : docker / go (openSUSE-SU-2014:1411-1)

Docker was updated to version 1.3.1 to fix two security issues and several other bugs. These security issues were fixed : - Prevent fallback to SSL protocols lower than TLS 1.0 for client, daemon and registry CVE-2014-5277. - Secure HTTPS connection to registries with certificate verification and...

MGASA-2014-0410 Updated golang packages fix CVE-2014-7189

Updated golang packages fix security vulnerability: Go 1.1 through 1.3.2 has an issue that affects programs that use crypto/tls to implement a TLS server. If the server enables TLS client authentication using certificates and explicitly sets SessionTicketsDisabled to true in the tls.Config, then ...

PT-2014-7824

Name of the Vulnerable Software and Affected Versions Go versions 1.1 through 1.3.2 Description The issue allows man-in-the-middle attackers to spoof clients via unspecified vectors when SessionTicketsDisabled is enabled. This can occur when the server enables TLS client authentication using...

openSUSE Security Update : icedtea-web (openSUSE-SU-2012:0371-1)

update to 1.2 - New features : - Signed JNLP support - Support for client authentication certificates - Cache size enforcement now supported via itweb-settings - Applet parameter passing through JNLP files now supported - Better icons for access warning dialog - Security Dialog UI revamped to...

Internet Bug Bounty: TLS Triple Handshake Attack

More details are at https://secure-resumption.com 2 Scenario ====== Consider a client C that normally authenticates to a server S using a client certificate. If C uses the same certificate to authenticate to a malicious server M, then we show that M can use C's certificate to authenticate its own...