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Bug 1349886 - (CVE-2016-4998) CVE-2016-4998 kernel: out of bounds reads when processing IPT_SO_SET_REPLACE setsockopt
CVE-2016-4998 kernel: out of bounds reads when processing IPT_SO_SET_REPLACE ...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20160624,repor...
: Security
Depends On: 1318693 1318695 1350316 1351421 1351422 1351423 1351424 1351425 1351426 1351427 1351428 1364809 1364810
Blocks: 1349725
  Show dependency tree / graph
 
Reported: 2016-06-24 08:51 EDT by Adam Mariš
Modified: 2017-01-19 07:37 EST (History)
29 users (show)

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Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An out-of-bounds heap memory access leading to a Denial of Service, heap disclosure, or further impact was found in setsockopt(). The function call is normally restricted to root, however some processes with cap_sys_admin may also be able to trigger this flaw in privileged container environments.
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Clone Of:
Environment:
Last Closed: 2017-01-19 07:37:52 EST
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Regression: ---
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Documentation: ---
CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1847 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2016-09-15 07:38:04 EDT
Red Hat Product Errata RHSA-2016:1875 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2016-09-15 07:39:21 EDT
Red Hat Product Errata RHSA-2016:1883 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2016-09-14 23:41:02 EDT
Red Hat Product Errata RHSA-2017:0036 normal SHIPPED_LIVE Important: kernel security and bug fix update 2017-01-10 17:03:19 EST

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Description Adam Mariš 2016-06-24 08:51:05 EDT 
An out-of-bounds heap memory access, leading to a Denial of Service or possibly heap disclosure or further impact was found in setsockopt(). The particular setsockopt() call is normally restricted to root, however some processes with cap_sys_admin may also be able to trigger this flaw.

Upstream fixes

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d04
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6e94e0cfb088
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bdf533de6968

Discussion on oss-sec:
http://www.openwall.com/lists/oss-security/2016/06/24/5
Comment 2 Andrej Nemec 2016-06-27 02:38:44 EDT 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1350316]
Comment 3 Andrej Nemec 2016-06-27 02:39:05 EDT 
Public via:

http://seclists.org/oss-sec/2016/q2/599
Comment 11 Fedora Update System 2016-06-30 17:24:18 EDT 
kernel-4.6.3-300.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
Comment 12 Fedora Update System 2016-07-02 15:24:38 EDT 
kernel-4.5.7-202.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 13 Fedora Update System 2016-07-19 03:19:30 EDT 
kernel-4.4.14-200.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 14 errata-xmlrpc 2016-09-14 19:43:59 EDT 
This issue has been addressed in the following products:

  MRG for RHEL-6 v.2

Via RHSA-2016:1883 https://rhn.redhat.com/errata/RHSA-2016-1883.html
Comment 15 errata-xmlrpc 2016-09-15 04:02:24 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1847 https://rhn.redhat.com/errata/RHSA-2016-1847.html
Comment 16 errata-xmlrpc 2016-09-15 04:11:33 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1875 https://rhn.redhat.com/errata/RHSA-2016-1875.html
Comment 19 errata-xmlrpc 2017-01-10 12:08:09 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0036 https://rhn.redhat.com/errata/RHSA-2017-0036.html
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