Information disclosure in Linux kernel - CVE-2018-15594
Published: August 20, 2018 / Updated: August 22, 2018
Vulnerability identifier: #VU14495
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-15594
CWE-ID: CWE-200
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows an adjacent attacker to conduct Spectre version 2 (Spectre-v2) attacks.
The vulnerability exists in the arch/x86/kernel/paravirt.c source code file due to improper handling of indirect calls to CALLEE_SAVE paravirtual functions. A remote attacker can access the system and execute an application that submits malicious input to access sensitive information, which could be used to conduct additional attacks.
How to mitigate CVE-2018-15594
Update to version 4.18.1.