CVE-2018-7995
MediumRace 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
CVSS 3.0 score
4.7
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-362CVE-2018-7995 is a Race Condition vulnerability
What is Race Condition?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2018-7995 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Securityfocushttp://www.securityfocus.com/bid/103356Third Party Advisory VDB Entry
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Issue Tracking Third Party Advisory
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Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/3654-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/3654-2/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/3656-1/Third Party Advisory
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Debian Securityhttps://www.debian.org/security/2018/dsa-4187Third Party Advisory
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Debian Securityhttps://www.debian.org/security/2018/dsa-4188Third Party Advisory
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PatchKernel patch commithttps://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aaf
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PatchKernel patch commithttps://lkml.org/lkml/2018/3/2/970
Frequently asked questions
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What is CVE-2018-7995?
CVE-2018-7995 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2018-7995 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2018-7995?
CVE-2018-7995 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.0). The vector string is
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2018-7995?
No patch is currently available for CVE-2018-7995. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2018-7995 actively exploited?
No — CVE-2018-7995 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Race Condition (CWE-362)?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →