Bug 1217950 (CVE-2023-48795)

Summary:	VUL-0: CVE-2023-48795: openssh: prefix truncation breaking ssh channel integrity aka Terrapin Attack
Product:	[Novell Products] SUSE Security Incidents	Reporter:	SMASH SMASH <smash_bz>
Component:	Incidents	Assignee:	Hans Petter Jansson <hpj>
Status:	IN_PROGRESS ---	QA Contact:	Security Team bot <security-team>
Severity:	Critical
Priority:	P1 - Urgent	CC:	gus.kenion, hpj, logan.vance, meissner, ncutler, rfrohl, sascha.wessels, sreeves, stoyan.manolov, xuanke.han, ydfan
Version:	unspecified	Flags:	logan.vance: needinfo? (hpj)
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/387549/
Whiteboard:	CVSSv3.1:SUSE:CVE-2023-48795:5.9:(AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:	1218126, 1218150, 1218194, 1218198, 1218218, 1218227, 1218264, 1218265, 1218266, 1218267, 1218268, 1218269, 1218270, 1218127, 1218128, 1218134, 1218144, 1218165, 1218168, 1218183, 1218189, 1218192, 1218197
Bug Blocks:

Comment 12 Marcus Meissner 2023-12-15 12:47:29 UTC

QA:

additional regression testing:

Try ssh connects from:

 -   unfixed openssh client to fixed server
 -  fixed openssh client to unfixed server
 -  fixed openssh client to fixed server
 -  try non-openssh client (putty?) to fixed server


(putty is in packagbehub of SLE15)

Not necessary on all products or architecutres, but just once per incident.

Comment 15 Marcus Meissner 2023-12-18 15:12:08 UTC

https://www.openssh.com/releasenotes.html#9.6p1  is out.

Comment 18 Maintenance Automation 2023-12-20 08:36:23 UTC

SUSE-SU-2023:4905-1: An update that solves one vulnerability can now be installed.

Category: security (important)
Bug References: 1217950
CVE References: CVE-2023-48795
Sources used:
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (src): openssh-7.9p1-150100.6.34.1, openssh-askpass-gnome-7.9p1-150100.6.34.1
SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (src): openssh-7.9p1-150100.6.34.1, openssh-askpass-gnome-7.9p1-150100.6.34.1
SUSE Linux Enterprise Server for SAP Applications 15 SP1 (src): openssh-7.9p1-150100.6.34.1, openssh-askpass-gnome-7.9p1-150100.6.34.1
SUSE CaaS Platform 4.0 (src): openssh-7.9p1-150100.6.34.1, openssh-askpass-gnome-7.9p1-150100.6.34.1

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 19 Maintenance Automation 2023-12-20 08:36:25 UTC

SUSE-SU-2023:4904-1: An update that solves one vulnerability can now be installed.

Category: security (important)
Bug References: 1217950
CVE References: CVE-2023-48795
Sources used:
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src): openssh-askpass-gnome-8.1p1-150200.5.43.1, openssh-8.1p1-150200.5.43.1
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src): openssh-askpass-gnome-8.1p1-150200.5.43.1, openssh-8.1p1-150200.5.43.1
SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src): openssh-askpass-gnome-8.1p1-150200.5.43.1, openssh-8.1p1-150200.5.43.1

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 20 Maintenance Automation 2023-12-20 08:36:28 UTC

SUSE-SU-2023:4903-1: An update that solves one vulnerability, contains one feature and has one security fix can now be installed.

Category: security (important)
Bug References: 1201750, 1217950
CVE References: CVE-2023-48795
Jira References: SLE-24929
Sources used:
SUSE Linux Enterprise High Performance Computing 12 SP5 (src): openssh-askpass-gnome-7.2p2-81.8.1, openssh-7.2p2-81.8.1
SUSE Linux Enterprise Server 12 SP5 (src): openssh-askpass-gnome-7.2p2-81.8.1, openssh-7.2p2-81.8.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): openssh-askpass-gnome-7.2p2-81.8.1, openssh-7.2p2-81.8.1

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 21 Maintenance Automation 2023-12-20 08:36:30 UTC

SUSE-SU-2023:4902-1: An update that solves one vulnerability and has one security fix can now be installed.

Category: security (important)
Bug References: 1214788, 1217950
CVE References: CVE-2023-48795
Sources used:
openSUSE Leap 15.3 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
openSUSE Leap Micro 5.3 (src): openssh-8.4p1-150300.3.27.1
openSUSE Leap Micro 5.4 (src): openssh-8.4p1-150300.3.27.1
openSUSE Leap 15.4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
openSUSE Leap 15.5 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro for Rancher 5.3 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro 5.3 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro for Rancher 5.4 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro 5.4 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro 5.5 (src): openssh-8.4p1-150300.3.27.1
Basesystem Module 15-SP4 (src): openssh-8.4p1-150300.3.27.1
Basesystem Module 15-SP5 (src): openssh-8.4p1-150300.3.27.1
Desktop Applications Module 15-SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1
Desktop Applications Module 15-SP5 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Real Time 15 SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Manager Proxy 4.3 (src): openssh-8.4p1-150300.3.27.1
SUSE Manager Retail Branch Server 4.3 (src): openssh-8.4p1-150300.3.27.1
SUSE Manager Server 4.3 (src): openssh-8.4p1-150300.3.27.1
SUSE Enterprise Storage 7.1 (src): openssh-askpass-gnome-8.4p1-150300.3.27.1, openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro 5.1 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro 5.2 (src): openssh-8.4p1-150300.3.27.1
SUSE Linux Enterprise Micro for Rancher 5.2 (src): openssh-8.4p1-150300.3.27.1

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.