Bug 1110924

Summary:	VUL-0: CVE-2018-10839: xen: ne2000: integer overflow leads to buffer overflow issue
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Alexander Bergmann <abergmann>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	carnold, smash_bz
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/216190/
Whiteboard:	CVSSv3:RedHat:CVE-2018-10839:6.5:(AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H) CVSSv3:SUSE:CVE-2018-10839:6.5:(AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H) CVSSv2:NVD:CVE-2018-10839:4.0:(AV:N/AC:L/Au:S/C:N/I:N/A:P) CVSSv3:NVD:CVE-2018-10839:6.5:(AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:	1110910
Bug Blocks:

Description Alexander Bergmann 2018-10-05 13:15:36 UTC

+++ This bug was initially created as a clone of Bug #1110910 +++

It looks like that the ne2000 emulator inside Xen is also affected.

rh#1581013

Qemu emulator built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network.

A user inside guest could use this flaw to crash the Qemu process resulting in DoS.

Upstream fix:
-------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.html

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1581013
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10839

Comment 1 Charles Arnold 2018-10-05 17:28:49 UTC

Applicable to xen qemu 'upstream' version for,

SLE11-SP3/SP4, SLE12, SLE12-SP1

qemu traditional version does not try to assign size_ to size which
converts from size_t to integer and therefore it does not have the problem.
This means older than SLE11-SP3 and newer than SLE12-SP1 have no need for a
fix in Xen's qemu. Xen uses kvm/qemu on SLE12-SP2 and newer which does need
the fix but that is the other bug.

Comment 5 Swamp Workflow Management 2019-04-01 13:19:24 UTC

SUSE-SU-2019:0827-1: An update that solves 15 vulnerabilities and has 10 fixes is now available.

Category: security (important)
Bug References: 1027519,1056336,1105528,1108940,1110924,1111007,1111011,1111014,1112188,1114423,1114988,1115040,1115045,1115047,1117756,1123157,1126140,1126141,1126192,1126195,1126196,1126198,1126201,1127400,1129623
CVE References: CVE-2017-13672,CVE-2018-10839,CVE-2018-17958,CVE-2018-17962,CVE-2018-17963,CVE-2018-18438,CVE-2018-18849,CVE-2018-19665,CVE-2018-19961,CVE-2018-19962,CVE-2018-19965,CVE-2018-19966,CVE-2018-19967,CVE-2019-6778,CVE-2019-9824
Sources used:
SUSE Linux Enterprise Server 12-LTSS (src):    xen-4.4.4_40-22.77.1

*** NOTE: This information is not intended to be used for external
    communication, because this may only be a partial fix.
    If you have questions please reach out to maintenance coordination.

Comment 6 Swamp Workflow Management 2019-04-01 13:22:41 UTC

SUSE-SU-2019:0825-1: An update that solves 14 vulnerabilities and has 5 fixes is now available.

Category: security (important)
Bug References: 1056336,1110924,1111007,1111011,1111014,1112188,1114423,1114988,1115040,1115047,1117756,1123157,1126140,1126141,1126192,1126195,1126196,1126201,1129623
CVE References: CVE-2017-13672,CVE-2018-10839,CVE-2018-17958,CVE-2018-17962,CVE-2018-17963,CVE-2018-18438,CVE-2018-18849,CVE-2018-19665,CVE-2018-19961,CVE-2018-19962,CVE-2018-19966,CVE-2018-19967,CVE-2019-6778,CVE-2019-9824
Sources used:
SUSE Linux Enterprise Server for SAP 12-SP1 (src):    xen-4.5.5_28-22.58.1
SUSE Linux Enterprise Server 12-SP1-LTSS (src):    xen-4.5.5_28-22.58.1

*** NOTE: This information is not intended to be used for external
    communication, because this may only be a partial fix.
    If you have questions please reach out to maintenance coordination.

Comment 7 Swamp Workflow Management 2019-04-03 13:09:42 UTC

SUSE-SU-2019:14011-1: An update that solves 14 vulnerabilities and has four fixes is now available.

Category: security (important)
Bug References: 1110924,1111007,1111011,1111014,1112188,1114423,1114988,1115040,1115045,1115047,1117756,1123157,1126140,1126141,1126192,1126195,1126196,1129623
CVE References: CVE-2018-10839,CVE-2018-17958,CVE-2018-17962,CVE-2018-17963,CVE-2018-18438,CVE-2018-18849,CVE-2018-19665,CVE-2018-19961,CVE-2018-19962,CVE-2018-19965,CVE-2018-19966,CVE-2018-19967,CVE-2019-6778,CVE-2019-9824
Sources used:
SUSE Linux Enterprise Point of Sale 11-SP3 (src):    xen-4.2.5_21-45.30.1
SUSE Linux Enterprise Debuginfo 11-SP3 (src):    xen-4.2.5_21-45.30.1

*** NOTE: This information is not intended to be used for external
    communication, because this may only be a partial fix.
    If you have questions please reach out to maintenance coordination.

Comment 8 Charles Arnold 2019-06-07 15:10:40 UTC

Fixed and released.

Comment 9 Marcus Meissner 2019-08-30 15:13:27 UTC

released