Bug 1586245 (CVE-2018-11806) - CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
Summary: CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmente...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-11806
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1586247 1586248 1586249 1586250 1586251 1586252 1586253 1586254 1586255 1586256 1586257 1586258 1586259 1586260 1586292
Blocks: 1572638
TreeView+ depends on / blocked
 
Reported: 2018-06-05 19:58 UTC by Prasad Pandit
Modified: 2021-12-10 16:18 UTC (History)
40 users (show)

Fixed In Version:
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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.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:27:22 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2462 0 None None None 2018-08-16 14:17:33 UTC
Red Hat Product Errata RHSA-2018:2762 0 None None None 2018-09-25 19:06:32 UTC
Red Hat Product Errata RHSA-2018:2822 0 None None None 2018-09-27 18:16:58 UTC
Red Hat Product Errata RHSA-2018:2887 0 None None None 2018-10-09 11:04:40 UTC
Red Hat Product Errata RHSA-2019:2892 0 None None None 2019-09-24 13:32:24 UTC

Description Prasad Pandit 2018-06-05 19:58:56 UTC 
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 Pandit 2018-06-05 19:59:23 UTC 
Acknowledgments:

Name: Jskz - Zero Day Initiative (trendmicro.com)
Comment 2 Prasad Pandit 2018-06-05 20:02:46 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1586249]
Comment 6 errata-xmlrpc 2018-08-16 14:17:17 UTC 
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 19:06:13 UTC 
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 18:16:40 UTC 
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 11:04:22 UTC 
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
Comment 10 errata-xmlrpc 2019-09-24 13:32:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:2892 https://access.redhat.com/errata/RHSA-2019:2892
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