CVE-2018-7995
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…
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
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
- CVSS 3.0
- 4.7 MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.30% probability · 23th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/103356Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1084755Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aafPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlThird Party Advisory
- https://lkml.org/lkml/2018/3/2/970Patch, Third Party Advisory
- https://usn.ubuntu.com/3654-1/Third Party Advisory
- https://usn.ubuntu.com/3654-2/Third Party Advisory
- https://usn.ubuntu.com/3656-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4187Third Party Advisory
- https://www.debian.org/security/2018/dsa-4188Third Party Advisory
- http://www.securityfocus.com/bid/103356Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1084755Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45bbbcc75c2aafPatch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlThird Party Advisory
- https://lkml.org/lkml/2018/3/2/970Patch, Third Party Advisory
- https://usn.ubuntu.com/3654-1/Third Party Advisory
- https://usn.ubuntu.com/3654-2/Third Party Advisory
- https://usn.ubuntu.com/3656-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4187Third Party Advisory
- https://www.debian.org/security/2018/dsa-4188Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.