Bug 1859168 (CVE-2020-15859)

Summary:	CVE-2020-15859 QEMU: net: e1000e: use-after-free while sending packets
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	amit, berrange, cfergeau, dwmw2, itamar, jen, jferlan, jforbes, jjoyce, jlyle, jmaloy, jschluet, kbasil, knoel, lhh, lpeer, m.a.young, mburns, mkenneth, mrezanin, mst, pbonzini, ribarry, rjones, robinlee.sysu, sclewis, slinaber, virt-maint, virt-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in the INTEL 82574 NIC (e1000e) emulator of the QEMU. The issue happens while sending packets if the guest user has set the packet data address to the e1000e's MMIO address. This flaw allows a guest user or process to crash the QEMU process on the host, resulting in a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-09 22:52:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1859169, 1859170, 1859171, 1859172, 1859175, 1859176, 1910683
Bug Blocks:	1835815

Description Prasad Pandit 2020-07-21 11:34:27 UTC

A use-after-free issue was found in the INTEL 82574 NIC (e1000e) emulator of the QEMU.
It could while sending packets if the guest user set the packet data address to
e1000e's MMIO address. A guest user/process could use this flaw to crash the QEMU
process on the host resulting in DoS scenario.

Upstream patch:
----------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2020-07/msg06147.html

Reference:
----------
  -> https://bugs.launchpad.net/qemu/+bug/1886362

Comment 1 Prasad Pandit 2020-07-21 11:34:42 UTC

Acknowledgments:

Name: Alexander Bulekov

Comment 2 Prasad Pandit 2020-07-21 11:35:20 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1859169]

Comment 6 Prasad Pandit 2020-07-21 13:34:38 UTC

External References:

https://www.openwall.com/lists/oss-security/2020/07/21/3

Comment 8 Nick Tait 2021-03-02 20:16:10 UTC

Statement:

In Red Hat OpenStack Platform, because the flaw has a lower impact and the fix would require a substantial amount of development, no update will be provided at this time for the RHOSP qemu-kvm-rhev package.

Comment 11 errata-xmlrpc 2021-11-09 17:39:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4191 https://access.redhat.com/errata/RHSA-2021:4191

Comment 12 Product Security DevOps Team 2021-11-09 22:52:00 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-15859