CVE-2017-12154: linux linux_kernel
Vulnerability summary
CVE-2017-12154 is a high (CVSS 7.1) vulnerability in linux linux_kernel. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.7% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 19 · Related 8Timeline
- 26-09-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.51% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu20 products
- linux< 3.13.0-153.203 | < 4.4.0-98.121
- linux-aws< 4.4.0-1039.48
- linux-azure< 4.13.0-1005.7
- linux-azure-6.11All versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
Debian1 product
- linux< 4.12.13-1
Linux1 product
- linux_kernel≤ 4.13.3
3 vendors · 22 products
References
19 links- bugzilla.redhat.com/show_bug.cgi?id=1491224X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- www.spinics.net/lists/kvm/msg155414.htmlX Refsource CONFIRMMailing ListPatchThird Party AdvisoryREPORT
- github.com/torvalds/linux/commit/51aa68e7d57e3217192d88ce90fd5b8ef29ec94fX Refsource CONFIRMIssue TrackingPatchThird Party Advisory