How to try to predict the output of Micali-Schnorr Generator (MS-DRBG) knowing the factorization

The article was modified since its publication. Last update was 09/10/2017 See also Part II and Part III of this series tl;dr in this post we are going to describe how to try predict the output of Micali-Schnorr Generator MS-DRBG knowing the factorization of the n value. If this sounds like, "why...

Proof that HMAC-DRBG has No Back Doors

New research: "Verified Correctness and Security of mbedTLS HMAC-DRBG," by Katherine Q. Ye, Matthew Green, Naphat Sanguansin, Lennart Beringer, Adam Petcher, and Andrew W. Appel. Abstract: We have formalized the functional specification of HMAC-DRBG NIST 800-90A, and we have proved its...

SA153: NSS Vulnerabilities Apr-May 2017

SUMMARY Symantec Network Protection products using affected versions of NSS are susceptible to two security vulnerabilities. A remote attacker can send empty SSLv2 messages and cause denial of service through application crashes. An attacker can also have unspecified impact by exploiting a...

Debian DLA-946-1 : nss security update

The NSS library is vulnerable to two security issues : CVE-2017-5461 Out-of-bounds write in Base64 encoding. This can trigger a crash denial of service and might be exploitable for code execution. CVE-2017-5462 A flaw in DRBG number generation where the internal state V does not correctly carry...

Network Security Services Denial of Service Vulnerability in Multiple Mozilla Products

Mozilla Firefox, Firefox ESR, and Thunderbird are all developed by the Mozilla Foundation in the U.S. Firefox is an open-source web browser, and Firefox ESR is an extended-support version of Firefox.Thunderbird is a suite of email clients that are separate from the Mozilla Application Suite...

Ubuntu: Security Advisory (USN-3278-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2017 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...

USN-3278-1 thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to read uninitialized memory, cause a denial of service via application crash, or execute arbitrary code. CVE-2017-5429,...

USN-3278-1: Thunderbird vulnerabilities

Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to read uninitialized memory, cause a denial of service via application crash, or execute arbitrary code. CVE-2017-5429,...

Ubuntu 14.04 LTS / 16.04 LTS : Firefox regression (USN-3260-2)

USN-3260-1 fixed vulnerabilities in Firefox. The update caused the date picker panel and form validation errors to close immediately on opening. This update fixes the problem. We apologize for the inconvenience. Multiple security issues were discovered in Firefox. If a user were tricked in to...

USN-3260-2: Firefox regression

USN-3260-1 fixed vulnerabilities in Firefox. The update caused the date picker panel and form validation errors to close immediately on opening. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a...

Ubuntu 14.04 LTS / 16.04 LTS : Firefox vulnerabilities (USN-3260-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3260-1 advisory. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could...

Ubuntu: Security Advisory (USN-3260-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2017 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...

FreeBSD : NSS -- multiple vulnerabilities (4cb165f0-6e48-423e-8147-92255d35c0f7)

Mozilla Foundation reports : An out-of-bounds write during Base64 decoding operation in the Network Security Services NSS library due to insufficient memory being allocated to the buffer. This results in a potentially exploitable crash. The NSS library has been updated to fix this issue to addres...

CVE-2017-5462

A flaw in DRBG number generation within the Network Security Services NSS library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox ESR 52.1 has been updated with NSS version 3.28.4. This vulnerabili...

CVE-2017-5462

A flaw in DRBG number generation within the Network Security Services NSS library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox ESR 52.1 has been updated with NSS version 3.28.4. This vulnerabili...

NSS -- multiple vulnerabilities

Mozilla Foundation reports: An out-of-bounds write during Base64 decoding operation in the Network Security Services NSS library due to insufficient memory being allocated to the buffer. This results in a potentially exploitable crash. The NSS library has been updated to fix this issue to address...

Cryptographers Concerned Over NSA's Deprecation of ECC

The National Security Agency has long cuddled up to Elliptic Curve Cryptography, swaying standards bodies away from RSA crypto and toward ECC in the late 1990s, as well as recommending it as a strong enough solution for sensitive government agencies to use in guarding their biggest secrets. In...

Moderate: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

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

Moderate: Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

Updated kernel-rt packages that fix three security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise MRG 2.5. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores, which gi...

kernel security, bug fix, and enhancement update

2.6.32-573 - security selinux: dont waste ebitmap space when importing NetLabel categories Paul Moore 1130197 - x86 Revert Add driver auto probing for x86 features v4 Prarit Bhargava 1231280 - net bridge: netfilter: dont call iptables on vlan packets if sysctl is off Florian Westphal 1236551 - ne...