CVE-2018-15594

kernel: Mishandling of indirect calls weakens Spectre mitigation for paravirtual guests

Published Aug 20, 2018 CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1531-1 linux-4.9 security update
Debian DSA Debian DSA DSA-4308-1 linux security update
EUVD EUVD EUVD-2018-7468 arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.
Ubuntu USN Ubuntu USN USN-3775-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3775-2 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3776-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3776-2 Linux kernel (Xenial HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3777-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-3777-2 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-3777-3 Linux kernel (Azure) vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 10:01 AM
Reserved
Aug 20, 2018, 12:00 AM
Status
Modified
Published
Aug 20, 2018, 8:29 AM
Modified
Jun 17, 2026, 1:42 AM
Severity
Moderate
Public date
Aug 3, 2018, 12:00 AM