cve/2018/CVE-2018-15572.md

CVE-2018-15572

Description

The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.

POC

Reference

• https://usn.ubuntu.com/3777-1/
• https://usn.ubuntu.com/3777-2/
• https://usn.ubuntu.com/3777-3/

Github

• https://github.com/codexlynx/hardware-attacks-state-of-the-art
• https://github.com/elivepatch/livepatch-overlay