curl: Inferior OCSP verification

Libcurl offers "OCSP stapling" via the CURLOPTSSLVERIFYSTATUS option. When set, libcurl verifies the OCSP response that a server responds with as part of the TLS handshake. It then aborts the TLS negotiation if something is wrong with the response. The same feature can be enabled with --cert-stat...

[SECURITY] [DLA 2500-1] curl security update

Debian LTS Advisory DLA-2500-1 [email protected] https://www.debian.org/lts/security/ Roberto C. Sánchez December 18, 2020 https://wiki.debian.org/LTS Package : curl Version : 7.52.1-5+deb9u13 CVE ID : CVE-2020-8284 CVE-2020-8285 CVE-2020-8286 Debian Bug : 977161 977162 977163 Several...

Authorization Bypass

curl is vulnerable to authorization bypass. The vulnerability is present only if OpenSSL is the designated TLS backend. OCSP stapling is not enabled by default by libcurl, it needs to be explicitly enabled by the application to get used...

CVE-2020-8286

Libcurl offers "OCSP stapling" via the CURLOPTSSLVERIFYSTATUS option. When set, libcurl verifies the OCSP response that a server responds with as part of the TLS handshake. It then aborts the TLS negotiation if something is wrong with the response. The same feature can be enabled with --cert-stat...

CURL-CVE-2020-8286 Inferior OCSP verification

libcurl offers "OCSP stapling" via the CURLOPTSSLVERIFYSTATUS option. When set, libcurl verifies the OCSP response that a server responds with as part of the TLS handshake. It then aborts the TLS negotiation if something is wrong with the response. The same feature can be enabled with --cert-stat...

Ubuntu 18.04 LTS : OpenJDK 11 vulnerabilities (USN-4083-1)

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4083-1 advisory. It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing suppressed exceptions in some situations. An attacker...

USN-4083-1: OpenJDK 11 vulnerabilities

It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing suppressed exceptions in some situations. An attacker could use this to specially craft an object that, when deserialized, would cause a denial of service. CVE-2019-2762 It was discovered that in some...

openssl: OCSP Status Request extension unbounded memory growth

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

cURL: Certificate validation error

Background cURL is a tool and libcurl is a library for transferring data with URL syntax. Description cURL and applications linked against libcurl support “OCSP stapling”, also known as the TLS Certificate Status Request extension using the CURLOPTSSLVERIFYSTATUS option. When telling cURL to use...

CURL-CVE-2017-2629 SSL_VERIFYSTATUS ignored

curl and libcurl support "OCSP stapling", also known as the TLS Certificate Status Request extension using the CURLOPTSSLVERIFYSTATUS option. When telling curl to use this feature, it uses that TLS extension to ask for a fresh proof of the server's certificate's validity. If the server does not...

PT-2017-15455

Name of the Vulnerable Software and Affected Versions curl versions prior to 7.53.0 Description The issue is related to the TLS Certificate Status Request extension feature, also known as OCSP stapling, which is used to ask for a fresh proof of the server's certificate's validity. Due to a coding...

Amazon Linux: Security Advisory (ALAS-2016-749)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...

Amazon Linux AMI : openssl (ALAS-2016-749)

A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it...

Fast and Full Featured SSL Scanner: SSLyze

SSLyze is a Python tool that can analyze the SSL configuration of a server by connecting to it. It is designed to be fast and comprehensive, and should help organizations and testers identify mis-configurations affecting their SSL servers. SSLyze is all Python code but it uses an OpenSSL wrapper...

Let's Encrypt Initiative Enters Public Beta

The Let’s Encrypt initiative reached yet another milestone this week when it entered public beta, something it claims should help make it easier for website owners to embrace HTTPS encryption. The latest step comes on the heels of the movement issuing its first certificate back in September and...

Test SSL Ciphersuite: Cipherscan

Test SSL Ciphersuite: Cipherscan Simple way to find out which SSL ciphersuites are supported by a target Cipherscan tests the ordering of the SSL/TLS ciphers on a given target, for all major versions of SSL and TLS. It also extracts some certificates informations, TLS options, OCSP stapling and...

Amazon CloudFront Turns On Perfect Forward Secrecy

Add Amazon to the growing list of technology providers ensuring that its encryption capabilities exceed a minimum standard. Yesterday, the company announced that its web content delivery platform Amazon CloudFront had turned on Perfect Forward Secrecy, in addition to a number of changes designed ...

openSUSE Security Update : exim (openSUSE-SU-2014:0983-1)

"Changes in exim : - Silence static checkers; beo1506. - update to 4.83 This release of Exim includes one incompatible fix : + the behavior of expansion of arguments to math comparison functions , was unexpected, expanding the values twice; CVE-2014-2972; bnc888520 This release contains the...

AIX OpenSSL Advisory : openssl_advisory2.asc

The version of OpenSSL running on the remote host is affected by the following vulnerabilities : - ssl/t1lib.c in OpenSSL 0.9.8h through 0.9.8q and 1.0.0 through 1.0.0c allows remote attackers to cause a denial of service crash, and possibly obtain sensitive information in applications that use...

SuSE 11.2 Security Update : Mozilla NSS (SAT Patch Number 8484)

"Mozilla NSS has been updated to 3.15.2 bnc847708 bringing various features and bugfixes : The main feature is TLS 1.2 support and its dependent algorithms. - Support for AES-GCM ciphersuites that use the SHA-256 PRF - MD2, MD4, and MD5 signatures are no longer accepted for OCSP or CRLs - Add...