Bug 1187376

Summary:	VUL-1: CVE-2021-3595: xen: slirp: invalid pointer initialization may lead to information disclosure (tftp)
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Gianluca Gabrielli <gianluca.gabrielli>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Minor
Priority:	P4 - Low	CC:	carnold, smash_bz
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/302308/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Gianluca Gabrielli 2021-06-15 18:12:58 UTC

+++ This bug was initially created as a clone of Bug #1187366 +++

An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The function tftp_input() handles requests for the tftp protocol from the guest. While processing a udp packet that is smaller than the size of the tftp_t structure it uses memory from outside the working mbuf buffer. This issue may lead to out of bound read access or indirect memory disclosure to the guest.

Upstream commits:
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/93e645e7
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/3f179481
https://gitlab.freedesktop.org/slirp/libslirp/-/commit/990163cf

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1970489
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-3595

Comment 1 Gianluca Gabrielli 2021-06-15 18:57:43 UTC

Affected packages:
 - SUSE:SLE-11-SP1:Update:Teradata/xen     4.0.3_21548_20
 - SUSE:SLE-11-SP3:Update/xen              4.2.5_22
 - SUSE:SLE-11-SP3:Update:Teradata/xen     4.2.5_26
 - SUSE:SLE-11-SP4:Update/xen              4.4.4_48
 - SUSE:SLE-12-SP2:Update/xen              4.7.6_14
 - SUSE:SLE-12-SP3:Update/xen              4.9.4_18
 - SUSE:SLE-12-SP4:Update/xen              4.11.4_18
 - SUSE:SLE-12-SP5:Update/xen              4.12.4_10

Upstream patch [0], specifically this commit [1].

[0] https://gitlab.freedesktop.org/slirp/libslirp/-/commit/a5c9699712ed25c4b96d448e0977f7108cb0ebf5.patch
[1] https://gitlab.freedesktop.org/slirp/libslirp/-/commit/990163cf3ac86b7875559f49602c4d76f46f6f30.patch

Comment 5 Swamp Workflow Management 2021-09-02 13:43:00 UTC

# maintenance_jira_update_notice
SUSE-SU-2021:2924-1: An update that solves 15 vulnerabilities and has 6 fixes is now available.

Category: security (important)
Bug References: 1027519,1179246,1180491,1180846,1182654,1183243,1185682,1186428,1186429,1186433,1186434,1187369,1187376,1187378,1188050,1189373,1189376,1189378,1189380,1189381,1189882
CVE References: CVE-2021-0089,CVE-2021-20255,CVE-2021-28690,CVE-2021-28692,CVE-2021-28693,CVE-2021-28694,CVE-2021-28695,CVE-2021-28696,CVE-2021-28697,CVE-2021-28698,CVE-2021-28699,CVE-2021-28700,CVE-2021-3592,CVE-2021-3594,CVE-2021-3595
JIRA References: 
Sources used:
SUSE Linux Enterprise Software Development Kit 12-SP5 (src):    xen-4.12.4_12-3.49.1
SUSE Linux Enterprise Server 12-SP5 (src):    xen-4.12.4_12-3.49.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 6 Swamp Workflow Management 2021-09-03 16:29:51 UTC

# maintenance_jira_update_notice
SUSE-SU-2021:2955-1: An update that fixes 14 vulnerabilities is now available.

Category: security (important)
Bug References: 1181254,1182654,1186429,1186433,1186434,1187369,1187376,1187378,1189373,1189376,1189378,1189380,1189882
CVE References: CVE-2021-0089,CVE-2021-20255,CVE-2021-28690,CVE-2021-28692,CVE-2021-28694,CVE-2021-28695,CVE-2021-28696,CVE-2021-28697,CVE-2021-28698,CVE-2021-28699,CVE-2021-3308,CVE-2021-3592,CVE-2021-3594,CVE-2021-3595
JIRA References: 
Sources used:
SUSE OpenStack Cloud Crowbar 9 (src):    xen-4.11.4_20-2.60.1
SUSE OpenStack Cloud 9 (src):    xen-4.11.4_20-2.60.1
SUSE Linux Enterprise Server for SAP 12-SP4 (src):    xen-4.11.4_20-2.60.1
SUSE Linux Enterprise Server 12-SP4-LTSS (src):    xen-4.11.4_20-2.60.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 7 Swamp Workflow Management 2021-09-06 13:17:21 UTC

# maintenance_jira_update_notice
SUSE-SU-2021:2957-1: An update that fixes 13 vulnerabilities is now available.

Category: security (important)
Bug References: 1182654,1186429,1186433,1186434,1187369,1187376,1187378,1189373,1189376,1189378,1189380,1189882
CVE References: CVE-2021-0089,CVE-2021-20255,CVE-2021-28690,CVE-2021-28692,CVE-2021-28694,CVE-2021-28695,CVE-2021-28696,CVE-2021-28697,CVE-2021-28698,CVE-2021-28699,CVE-2021-3592,CVE-2021-3594,CVE-2021-3595
JIRA References: 
Sources used:
SUSE OpenStack Cloud Crowbar 8 (src):    xen-4.9.4_20-3.91.1
SUSE OpenStack Cloud 8 (src):    xen-4.9.4_20-3.91.1
SUSE Linux Enterprise Server for SAP 12-SP3 (src):    xen-4.9.4_20-3.91.1
SUSE Linux Enterprise Server 12-SP3-LTSS (src):    xen-4.9.4_20-3.91.1
SUSE Linux Enterprise Server 12-SP3-BCL (src):    xen-4.9.4_20-3.91.1
HPE Helion Openstack 8 (src):    xen-4.9.4_20-3.91.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 9 Swamp Workflow Management 2021-10-07 22:17:16 UTC

SUSE-SU-2021:3322-1: An update that fixes 13 vulnerabilities is now available.

Category: security (moderate)
Bug References: 1182654,1186429,1186433,1186434,1187369,1187376,1187378,1189373,1189376,1189378,1189632,1189882
CVE References: CVE-2021-0089,CVE-2021-20255,CVE-2021-28690,CVE-2021-28692,CVE-2021-28694,CVE-2021-28695,CVE-2021-28696,CVE-2021-28697,CVE-2021-28698,CVE-2021-28701,CVE-2021-3592,CVE-2021-3594,CVE-2021-3595
JIRA References: 
Sources used:
SUSE Linux Enterprise Server 12-SP2-BCL (src):    xen-4.7.6_16-43.79.5

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.

Comment 11 Swamp Workflow Management 2021-12-01 21:06:59 UTC

SUSE-SU-2021:14848-1: An update that fixes 17 vulnerabilities is now available.

Category: security (moderate)
Bug References: 1182654,1186013,1186429,1186433,1186434,1187369,1187376,1187378,1189150,1189376,1189378,1189632,1192526,1192554,1192555,1192559
CVE References: CVE-2021-0089,CVE-2021-20255,CVE-2021-28690,CVE-2021-28692,CVE-2021-28697,CVE-2021-28698,CVE-2021-28701,CVE-2021-28703,CVE-2021-28705,CVE-2021-28706,CVE-2021-28709,CVE-2021-3527,CVE-2021-3592,CVE-2021-3594,CVE-2021-3595,CVE-2021-3682,CVE-2021-3930
JIRA References: 
Sources used:
SUSE Linux Enterprise Server 11-SP4-LTSS (src):    xen-4.4.4_50-61.67.1
SUSE Linux Enterprise Debuginfo 11-SP4 (src):    xen-4.4.4_50-61.67.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.