CVE-2021-22556

The Security Team discovered an integer overflow bug that allows an attacker with code execution to issue memory cache invalidation operations on pages that they don’t own, allowing them to control kernel memory from userspace. We recommend upgrading to kernel version 4.1 or beyond...

SUSE CVE-2023-52562

In the Linux kernel, the following vulnerability has been resolved: mm/slabcommon: fix slabcaches list corruption after kmemcachedestroy After the commit in Fixes:, if a module that created a slab cache does not release all of its allocated objects before destroying the cache at rmmod time, we...

Side-channel Attack

httpd is vulnerable to side-channel attack. An implementation flaw was discovered in multiple cryptographic libraries that allows a side-channel based attacker to recover ECDSA or DSA private keys. When these cryptographic libraries use the private key to create a signature, such as for a TLS or...

hw: cpu: speculative store bypass

An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions a commonly used performance optimization. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the...

Updated libcrypt packages fix a security vulnerability

Updated libgcrypt packages fix security vulnerability: When libgcrypt uses the private key to create a signature, such as for a TLS or SSH connection, it inadvertently leaks information through memory caches. An unprivileged attacker running on the same machine can collect the information from a...

[ASA-201806-10] libgcrypt: private key recovery

Arch Linux Security Advisory ASA-201806-10 ========================================== Severity: High Date : 2018-06-16 CVE-ID : CVE-2018-0495 Package : libgcrypt Type : private key recovery Remote : No Link : https://security.archlinux.org/AVG-719 Summary ======= The package libgcrypt before...

Cross-VM Side-channel attacks against cryptography keys

A group of researchers has developed a side-channel attack targeting virtual machines that could pose a threat to cloud computing environments. Side-channel attacks against cryptography keys have, until now, been limited to physical machines, this attack is the first such attack demonstrated on a...

kernel -- information disclosure when using HTT

Problem description and impact When running on processors supporting Hyper-Threading Technology, it is possible for a malicious thread to monitor the execution of another thread. Information may be disclosed to local users, allowing in many cases for privilege escalation. For example, on a...