#ssl

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.` character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

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

An update for libksba is now available for Red Hat Enterprise Linux 8.2 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-3515: libksba: integer overflow may lead to remote code execution

** UNSUPPORTED WHEN ASSIGNED ** Oracle Solaris version 10 1/13, when using the Common Desktop Environment (CDE), is vulnerable to a privilege escalation vulnerability. A low privileged user can escalate to root by crafting a malicious printer and double clicking on the the crafted printer's icon.

An authenticated attacker could utilize the identical agent and cluster node linking keys to potentially allow for a scenario where unauthorized disclosure of agent logs and data is present.

At this year’s KubeCon/CloudNativeCon, both development and operations practitioners were tackling different security needs.

In wolfSSL versions prior to 5.5.1, malicious clients can cause a buffer overflow during a resumed TLS 1.3 handshake. If an attacker resumes a previous TLS session by sending a maliciously crafted Client Hello, followed by another maliciously crafted Client Hello. In total 2 Client Hellos have to be sent. One which pretends to resume a previous session and a second one as a response to a Hello Retry Request message.

When looking at the scale and scope of worldwide cybercrime, password attacks are the most commonly observed type of threat in a given 60-second period.

What's next for the social network is anyone's guess—but here's what to watch as you wade through the privacy and security morass.

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Oct. 21 and Oct. 28. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key