CVE-2018-15594
UnknownEPSS 0.55%
Last modified
CVE-2018-15594 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Linux | Linux Kernel | < 4.18.1 |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafdMitigation, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/105120Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041601Third Party Advisory, VDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafdMitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing List, Third Party Advisory
- https://twitter.com/grsecurity/status/1029324426142199808Third Party Advisory
- https://usn.ubuntu.com/3775-1/Third Party Advisory
- https://usn.ubuntu.com/3775-2/Third Party Advisory
- https://usn.ubuntu.com/3776-1/Third Party Advisory
- https://usn.ubuntu.com/3776-2/Third Party Advisory
- https://usn.ubuntu.com/3777-1/Third Party Advisory
- https://usn.ubuntu.com/3777-2/Third Party Advisory
- https://usn.ubuntu.com/3777-3/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafdMitigation, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/105120Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041601Third Party Advisory, VDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1Release Notes, Vendor Advisory
- https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafdMitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlMailing List, Third Party Advisory
- https://twitter.com/grsecurity/status/1029324426142199808Third Party Advisory
- https://usn.ubuntu.com/3775-1/Third Party Advisory
- https://usn.ubuntu.com/3775-2/Third Party Advisory
- https://usn.ubuntu.com/3776-1/Third Party Advisory
- https://usn.ubuntu.com/3776-2/Third Party Advisory
- https://usn.ubuntu.com/3777-1/Third Party Advisory
- https://usn.ubuntu.com/3777-2/Third Party Advisory
- https://usn.ubuntu.com/3777-3/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-15594?
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.
How severe is CVE-2018-15594?
Severity scoring for CVE-2018-15594 is pending analysis. The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.
How do I fix CVE-2018-15594?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-15594?
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Scan your code nowSource: NVD / NIST