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OpenSSL Releases Patch for 2 New High-Severity Vulnerabilities
The OpenSSL project has rolled out fixes to contain two high-severity flaws in its widely used cryptography library that could result in a denial-of-service (DoS) and remote code execution. The issues, tracked as CVE-2022-3602 and CVE-2022-3786, have been described as buffer overrun vulnerabilities that can be triggered during X.509 certificate verification by supplying a specially-crafted email
The OpenSSL project has rolled out fixes to contain two high-severity flaws in its widely used cryptography library that could result in a denial-of-service (DoS) and remote code execution.
The issues, tracked as CVE-2022-3602 and CVE-2022-3786, have been described as buffer overrun vulnerabilities that can be triggered during X.509 certificate verification by supplying a specially-crafted email address.
“In a TLS client, this can be triggered by connecting to a malicious server,” OpenSSL said in an advisory for CVE-2022-3786. “In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.”
OpenSSL is an open source implementation of the SSL and TLS protocols used for secure communication and is baked into several operating systems and a wide range of software.
Versions 3.0.0 through 3.0.6 of the library are affected by the new flaws, which has been remediated in version 3.0.7. It’s worth noting that the commonly deployed OpenSSL 1.x versions are not vulnerable.
Per data shared by Censys, about 7,062 hosts are said to run a susceptible version of OpenSSL as of October 30, 2022, with a majority of those located in the U.S., Germany, Japan, China, Czechia, the U.K., France, Russia, Canada, and the Netherlands.
While CVE-2022-3602 was initially treated as a Critical vulnerability, its severity has since been downgraded to High, citing stack overflow protections in modern platforms. Security researchers Polar Bear and Viktor Dukhovni have been credited with reporting CVE-2022-3602 and CVE-2022-3786 on October 17 and 18, 2022.
The OpenSSL Project further noted the bugs were introduced in OpenSSL 3.0.0 as part of punycode decoding functionality that’s currently used for processing email address name constraints in X.509 certificates.
Despite the change in severity, OpenSSL said it considers “these issues to be serious vulnerabilities and affected users are encouraged to upgrade as soon as possible.”
Version 3.0, the current release of OpenSSL, is bundled with Linux operating system flavors such as Ubuntu 22.04 LTS, CentOS, macOS Ventura, and Fedora 36, among others. Container images built using affected versions of Linux are also impacted.
According to an advisory published by Docker, roughly 1,000 image repositories could be affected across various Docker Official Images and Docker Verified Publisher images.
The last critical flaw addressed by OpenSSL was in September 2016, when it closed out CVE-2016-6309, a use-after-free bug that could result in a crash or execution of arbitrary code.
The OpenSSL software toolkit was most notably impacted by Heartbleed (CVE-2014-0160), a serious memory handling issue in the implementation of the TLS/DTLS heartbeat extension, enabling attackers to read portions of a target server’s memory.
“A critical vulnerability in a software library like OpenSSL, which is so widely in use and so fundamental to the security of data on the internet, is one that no organization can afford to overlook,” SentinelOne said.
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Red Hat Security Advisory 2022-7384-01 - The ubi9/openssl image provides provides an openssl command-line tool for using the various functions of the OpenSSL crypto library. Issues addressed include a buffer overflow vulnerability.
Summary Microsoft is aware and actively addressing the impact associated with the recent OpenSSL vulnerabilities announced on October 25th 2022, fixed in version 3.0.7. As part of our standard processes, we are rolling out fixes for impacted services. Any customer action that is required will be highlighted in this blog and our associated Security Update … Awareness and guidance related to OpenSSL 3.0 – 3.0.6 risk (CVE-2022-3786 and CVE-2202-3602) Read More »
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By Deeba Ahmed The OpenSSL vulnerability was first categorized as critical and later as a high-severity buffer overflow bug that impacted all OpenSSL 3.x installations. This is a post from HackRead.com Read the original post: OpenSSL Released Patch for High-Severity Vulnerability Detected Last Week
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Summary Summary Microsoft is aware and actively addressing the impact associated with the recent OpenSSL vulnerabilities announced on October 25th 2022, fixed in version 3.0.7. As part of our standard processes, we are rolling out fixes for impacted services. Any customer action that is required will be highlighted in this blog and our associated Security Update Guides (CVE-2022-3786 Security Update Guide and CVE-2022-3602 Security Update Guide).
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In late October two new buffer overflow vulnerabilities, CVE-2022-3602 and CVE-2022-3786, were announced in OpenSSL versions 3.0.0 to 3.0.6. These vulnerabilities can be exploited by sending an X.509 certificate with a specially crafted email address, potentially causing a buffer overflow resulting in a crash or
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