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Bug 1586245 - (CVE-2018-11806) CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmente...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20180605,repo...
: Security
Depends On: 1586251 1586252 1586247 1586248 1586249 1586250 1586253 1586254 1586255 1586256 1586257 1586258 1586259 1586260 1586292
Blocks: 1572638
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Reported: 2018-06-05 15:58 EDT by Prasad J Pandit
Modified: 2018-10-23 01:38 EDT (History)
40 users (show)

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Doc Text:
A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS or potentially leverage it to execute arbitrary code on the host with privileges of the QEMU process.
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2462 None None None 2018-08-16 10:17 EDT
Red Hat Product Errata RHSA-2018:2762 None None None 2018-09-25 15:06 EDT
Red Hat Product Errata RHSA-2018:2822 None None None 2018-09-27 14:16 EDT
Red Hat Product Errata RHSA-2018:2887 None None None 2018-10-09 07:04 EDT

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Description Prasad J Pandit 2018-06-05 15:58:56 EDT 
A heap buffer overflow issue was found in the way Slirp networking back-end
in QEMU processes fragmented packets. It could occur while reassembling the
fragmented datagrams of an incoming packet.

A privileged user/process inside guest could use this flaw to crash the QEMU
process resulting in DoS OR potentially leverage it to execute arbitrary code
on the host with privileges of the QEMU process.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2018/06/07/1
Comment 1 Prasad J Pandit 2018-06-05 15:59:23 EDT 
Acknowledgments:

Name: Jskz - Zero Day Initiative (trendmicro.com)
Comment 2 Prasad J Pandit 2018-06-05 16:02:46 EDT 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1586249]
Comment 6 errata-xmlrpc 2018-08-16 10:17:17 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2462 https://access.redhat.com/errata/RHSA-2018:2462
Comment 7 errata-xmlrpc 2018-09-25 15:06:13 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2762 https://access.redhat.com/errata/RHSA-2018:2762
Comment 8 errata-xmlrpc 2018-09-27 14:16:40 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)
  Red Hat OpenStack Platform 12.0 (Pike)
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)
  Red Hat OpenStack Platform 13.0 (Queens)

Via RHSA-2018:2822 https://access.redhat.com/errata/RHSA-2018:2822
Comment 9 errata-xmlrpc 2018-10-09 07:04:22 EDT 
This issue has been addressed in the following products:

  Red Hat Virtualization 4 for Red Hat Enterprise Linux 7

Via RHSA-2018:2887 https://access.redhat.com/errata/RHSA-2018:2887
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