Published: 02/07/2018 Updated: 23/04/2019

CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 3.3 | Impact Score: 1.4 | Exploitability Score: 1.8

VMScore: 188

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

The alarm_timer_nsleep function in kernel/time/alarmtimer.c in the Linux kernel up to and including 4.17.3 has an integer overflow via a large relative timeout because ktime_add_safe is not used.

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linux linux kernel
canonical ubuntu linux 16.04
canonical ubuntu linux 14.04
debian debian linux 8.0

Synopsis Important: kernel-rt security and bug fix update Type/Severity Security Advisory: Important Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (C ...

Synopsis Important: kernel security, bug fix, and enhancement update Type/Severity Security Advisory: Important Topic An update for kernel is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring S ...

Synopsis Important: kernel-alt security and bug fix update Type/Severity Security Advisory: Important Topic An update for kernel-alt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System ...

Several security issues were fixed in the Linux kernel ...

A flaw was found in the alarm_timer_nsleep() function in kernel/time/alarmtimerc in the Linux kernel The ktime_add_safe() function is not used and an integer overflow can happen causing an alarm not to fire or possibly a denial-of-service if using a large relative timeout ...

CWE-190 https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=5f936e19cc0ef97dbe3a56e9498922ad5ba1edef https://bugzilla.kernel.org/show_bug.cgi?id=200303 http://www.securityfocus.com/bid/104671 https://usn.ubuntu.com/3821-2/https://usn.ubuntu.com/3821-1/https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html https://access.redhat.com/errata/RHSA-2019:0831 https://access.redhat.com/errata/RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2029 https://usn.ubuntu.com/4094-1/https://usn.ubuntu.com/4118-1/https://nvd.nist.gov https://access.redhat.com/errata/RHSA-2019:2043 https://usn.ubuntu.com/3821-1/

CVE-2018-13053

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