Vulnerability in Linux Kernel
CVE-2018-15572
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.
EPSS: 0.005 (40.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Linux Linux_kernel
- Canonical Ubuntu_linux — versions 12.04, 14.04, 16.04
- Debian Debian_linux — versions 8.0, 9.0
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, x_refsource_MISC, Mitigation, Vendor Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Mitigation)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- cve@mitre.org (Patch, x_refsource_MISC, Mitigation, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-15572?
- CVE-2018-15572 is a medium-severity vulnerability in Linux Kernel. CVSS score: 6.5/10. Published 2018-08-20.
- How severe is CVE-2018-15572?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-15572 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.