RHEL 6 / 7 : nss (RHSA-2015:1185) (Logjam)

Updated nss and nss-util packages that fix one security issue, several bugs and add various enhancements are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores,...

SUSE-SU-2015:1264-1 Security update for postgresql93

PostgreSQL was updated to the security and bugfix release 9.3.8 including 9.3.7. Security issues fixed: CVE-2015-3165, bsc931972: Avoid possible crash when client disconnects just before the authentication timeout expires. CVE-2015-3166, bsc931973: Consistently check for failure of the printf...

CentOS Update for nss CESA-2015:1185 centos7

Check the version of nss SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882207";...

Amazon Linux AMI : openssl (ALAS-2015-550) (Logjam)

LOGJAM: A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange for both export and non-export grade cipher suites. An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation. This...

Fedora 20 : nss-3.19.1-1.0.fc20 / nss-softokn-3.19.1-1.0.fc20 / nss-util-3.19.1-1.0.fc20 (2015-9161) (Logjam)

Security fix for CVE-2015-4000 Update to the upstream NSS 3.19.1 release, which includes a fix for the recently published logjam attack. The previous 3.19 release made several notable changes related to the TLS protocol, one of them was to disable the SSL 3 protocol by default. For the full list ...

openssl: multiple issues

CVE-2015-1788 denial of service When processing an ECParameters structure OpenSSL enters an infinite loop if the curve specified is over a specially malformed binary polynomial field. This can be used to perform denial of service against any system which processes public keys, certificate...

OpenSSL Patches Five Flaws, Adds Protection Against Logjam Attack

The OpenSSL project has patched several moderate- and low-severity security vulnerabilities and also has added protection against the Logjam attack in new releases of the software. Most of the vulnerabilities fixed in the new releases are denial-of-service bugs, but one of them can potentially...

RedHat Update for openssl RHSA-2015:1072-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CentOS Update for openssl CESA-2015:1072 centos7

Check the version of openssl SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882194";...

Scientific Linux Security Update : openssl on SL6.x, SL7.x i386/x86_64 (20150604) (Logjam)

A flaw was found in the way the TLS protocol composes the Diffie-Hellman DH key exchange. A man-in-the-middle attacker could use this flaw to force the use of weak 512 bit export-grade keys during the key exchange, allowing them do decrypt all traffic. CVE-2015-4000 Note: This update forces the...

Fedora 22 : nss-3.19.1-1.0.fc22 / nss-softokn-3.19.1-1.0.fc22 / nss-util-3.19.1-1.0.fc22 (2015-9048) (Logjam)

Security fix for CVE-2015-4000 Update to the upstream NSS 3.19.1 release, which includes a fix for the recently published logjam attack. The previous 3.19 release made several notable changes related to the TLS protocol, one of them was to disable the SSL 3 protocol by default. For the full list ...

Fedora 21 : nss-3.19.1-1.0.fc21 / nss-softokn-3.19.1-1.0.fc21 / nss-util-3.19.1-1.0.fc21 (2015-9130) (Logjam)

Security fix for CVE-2015-4000 Update to the upstream NSS 3.19.1 release, which includes a fix for the recently published logjam attack. The previous 3.19 release made several notable changes related to the TLS protocol, one of them was to disable the SSL 3 protocol by default. For the full list ...

Logjam attacks-the new encryption bug affects a large number of users-bug warning-the black bar safety net

Diffie-Hellman key exchange technology is one of the popular encryption algorithm which allows the Internet Protocol uses a shared key and a secure link. It is a multi-Protocol based including HTTPS, SSH, IPsec, SMTPS and some rely on the TLS Protocol. We have found a number of Diffie-Hellman key...

Code injection

The TLS protocol 1.2 and earlier, when a DHEEXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHEEXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHEEXPORT and then...

CVE-2015-4000

The TLS protocol 1.2 and earlier, when a DHEEXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHEEXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHEEXPORT and then...

CVE-2015-4000

CVE-2015-4000 is the Logjam vulnerability: when a server enables DHE_EXPORT ciphers and the client does not, the TLS handshake may downgrade to 512‑bit export‑grade DH, allowing a MITM to decrypt traffic. Public details describe the issue in TLS as a downgrade attack on Diffie–Hellman key exchang...

CVE-2015-4000

The TLS protocol 1.2 and earlier, when a DHEEXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHEEXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHEEXPORT and then...

CVE-2015-4000

The TLS protocol 1.2 and earlier, when a DHEEXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHEEXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHEEXPORT and then...

New Logjam Attack on Diffie-Hellman Threatens Security of Browsers, VPNs

Researchers have uncovered a flaw in the way that some servers handle the Diffie-Hellman key exchange, a bug that’s somewhat similar to the FREAK attack and threatens the security of many Web and mail servers. The bug affects all of the major browsers and any server that supports export-grade...

LogJam — This New Encryption Glitch Puts Internet Users at Risk

After HeartBleed, POODLE and FREAK encryption flaws, a new encryption attack has been emerged over the Internet that allows attackers to read and modify the sensitive data passing through encrypted connections, potentially affecting hundreds of thousands of HTTPS-protected sites, mail servers, an...