Bug 1597747 (CVE-2018-13053) - CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function
Summary: CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-13053
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1597748 1597750 1653677 1653678 1653680 1653681
Blocks: 1597749
TreeView+ depends on / blocked
 
Reported: 2018-07-03 14:42 UTC by Laura Pardo
Modified: 2021-02-17 00:01 UTC (History)
53 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the alarm_timer_nsleep() function in kernel/time/alarmtimer.c 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.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:31:33 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:0831 0 None None None 2019-04-23 14:30:21 UTC
Red Hat Product Errata RHSA-2019:2029 0 None None None 2019-08-06 12:04:05 UTC
Red Hat Product Errata RHSA-2019:2043 0 None None None 2019-08-06 12:06:30 UTC

Description Laura Pardo 2018-07-03 14:42:58 UTC 
A flaw was found in the alarm_timer_nsleep() function in kernel/time/alarmtimer.c 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.

References:

https://bugzilla.kernel.org/show_bug.cgi?id=200303

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f936e19cc0ef97dbe3a56e9498922ad5ba1edef
Comment 1 Laura Pardo 2018-07-03 14:44:08 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1597748]
Comment 8 errata-xmlrpc 2019-04-23 14:30:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0831 https://access.redhat.com/errata/RHSA-2019:0831
Comment 9 errata-xmlrpc 2019-08-06 12:04:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029
Comment 10 errata-xmlrpc 2019-08-06 12:06:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043
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