OpenSSL HollowByte Flaw Could Freeze Server Memory with 11-Byte TLS Requests
Okta's Red Team has disclosed a denial-of-service vulnerability in OpenSSL, dubbed HollowByte, that allows an attacker to freeze server memory using 11-byte…
Tag: Red Hat
11 Old Microsoft-Signed Linux UEFI Shims Could Let Attackers Bypass Secure Boot
Cybersecurity researchers at ESET have discovered 11 old, Microsoft-signed UEFI shim bootloaders that could be exploited to bypass Secure Boot protections on…
16-Year-Old Linux KVM Flaw Januscape (CVE-2026-53359) Enables Guest-to-Host Escape on Intel and AMD
A critical use-after-free vulnerability in the Linux Kernel-based Virtual Machine (KVM) hypervisor, tracked as CVE-2026-53359 and named 'Januscape', allows a guest virtual…
New Linux ‘pedit COW’ Exploit Grants Root Access by Poisoning Cached Binaries
A critical vulnerability in the Linux kernel's traffic-control subsystem, tracked as CVE-2026-46331 and nicknamed 'pedit COW,' allows a local unprivileged user to…
Red Hat Vulnerabilities Added to KEV
Red Hat ABRT and libuser are affected by CVE-2015-5287 and CVE-2015-3246, respectively, both of which have been added to CISA's KEV catalog.