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CVE-2018-7995

N/A
Published: March 9, 2018 at 03:00 PM UTC
Updated: June 17, 2026 at 02:04 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
N/A
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Race condition in the store_int_with_restart() function in arch/x86/kernel/cpu/mcheck/mce.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (panic) by leveraging root access to write to the check_interval file in a /sys/devices/system/machinecheck/machinecheck<cpu number> directory. NOTE: a third party has indicated that this report is not security relevant

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (10)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/103356
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.suse.com/show_bug.cgi?id=1084755
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://lkml.org/lkml/2018/3/2/970
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3654-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3654-2/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3656-1/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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