Bug 1487295 (CVE-2017-14106) - CVE-2017-14106 kernel: Divide-by-zero in __tcp_select_window
Summary: CVE-2017-14106 kernel: Divide-by-zero in __tcp_select_window
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-14106
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1487051 1487061 1487703 1488340 1488341 1488342 1488343 1488344 1488345 1488346 1488347 1488348 1488349
Blocks: 1487299
TreeView+ depends on / blocked
 
Reported: 2017-08-31 14:54 UTC by Adam Mariš
Modified: 2021-03-11 15:41 UTC (History)
47 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A divide-by-zero vulnerability was found in the __tcp_select_window function in the Linux kernel. This can result in a kernel panic causing a local denial of service.
Clone Of:
Environment:
Last Closed: 2019-06-08 03:23:25 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2017:3163 0 normal SHIPPED_LIVE new packages: kernel-alt 2017-11-09 14:59:25 UTC
Red Hat Product Errata RHSA-2017:2918 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2017-10-19 17:24:24 UTC
Red Hat Product Errata RHSA-2017:2930 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2017-10-19 18:47:35 UTC
Red Hat Product Errata RHSA-2017:2931 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2017-10-19 18:48:35 UTC
Red Hat Product Errata RHSA-2017:3200 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2017-11-15 01:34:41 UTC
Red Hat Product Errata RHSA-2018:2172 0 None None None 2018-07-11 15:39:24 UTC

Description Adam Mariš 2017-08-31 14:54:44 UTC 
Divide-by-zero vulnerability was found in __tcp_select_window function which can result into kernel panic causing local denial-of-service if panic_on_oops is enabled.

References:

http://seclists.org/oss-sec/2017/q3/389

https://marc.info/?l=linux-netdev&m=150415901823078

https://www.mail-archive.com/netdev@vger.kernel.org/msg186255.html

https://groups.google.com/forum/#!topic/syzkaller/e4SrsEBEziQ

Upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=499350a5a6e7512d9ed369ed63a4244b6536f4f8
Comment 1 Adam Mariš 2017-09-01 16:18:46 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1487703]
Comment 3 Wade Mealing 2017-09-05 08:07:03 UTC 
Statement:

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 and 7 and MRG-2. Future Linux kernel updates for the respective releases may address this issue.
Comment 8 Justin M. Forbes 2017-09-05 14:19:25 UTC 
This bug was fixed upstream in May and is currently fixed included in all supported Fedora releases.
Comment 9 errata-xmlrpc 2017-10-19 13:27:52 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2017:2918 https://access.redhat.com/errata/RHSA-2017:2918
Comment 10 errata-xmlrpc 2017-10-19 15:07:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2930 https://access.redhat.com/errata/RHSA-2017:2930
Comment 11 errata-xmlrpc 2017-10-19 15:11:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:2931 https://access.redhat.com/errata/RHSA-2017:2931
Comment 13 errata-xmlrpc 2017-11-14 20:39:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:3200 https://access.redhat.com/errata/RHSA-2017:3200
Comment 14 errata-xmlrpc 2018-07-11 15:39:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5 Extended Lifecycle Support

Via RHSA-2018:2172 https://access.redhat.com/errata/RHSA-2018:2172
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