CVE-2017-15906

Upstream information

CVE-2017-15906 at MITRE

Description

The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.

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SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores

	National Vulnerability Database	SUSE
Base Score	5	4
Vector	AV:N/AC:L/Au:N/C:N/I:P/A:N	AV:N/AC:L/Au:S/C:N/I:P/A:N
Access Vector	Network	Network
Access Complexity	Low	Low
Authentication	None	Single
Confidentiality Impact	None	None
Integrity Impact	Partial	Partial
Availability Impact	None	None

CVSS v3 Scores

	National Vulnerability Database	SUSE
Base Score	5.3	4.3
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Access Vector	Network	Network
Access Complexity	Low	Low
Privileges Required	None	Low
User Interaction	None	None
Scope	Unchanged	Unchanged
Confidentiality Impact	None	None
Integrity Impact	Low	Low
Availability Impact	None	None
CVSSv3 Version	3	3

SUSE Bugzilla entries: 1064285 [RESOLVED / NORESPONSE], 1065000 [RESOLVED / FIXED], 1074115 [RESOLVED / FIXED], 1079488 [RESOLVED / FIXED], 1090163 [RESOLVED / FIXED], 1099316 [RESOLVED / FIXED], 1138392 [RESOLVED / FIXED]

SUSE Security Advisories:

• SUSE-SU-2017:3230-1, published Thu Dec 7 10:08:56 MST 2017
• SUSE-SU-2018:2275-1, published Thu Aug 9 13:09:07 MDT 2018
• SUSE-SU-2018:2685-1, published Tue Sep 11 07:08:04 MDT 2018
• SUSE-SU-2018:2719-1, published Fri Sep 14 13:08:35 MDT 2018
• SUSE-SU-2018:3540-1, published Mon Oct 29 05:08:28 MDT 2018
• openSUSE-SU-2017:3243-1, published Fri, 8 Dec 2017 12:14:21 +0100 (CET)

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Desktop 12 SP2	openssh >= 7.2p2-74.11.1 openssh-askpass-gnome >= 7.2p2-74.11.3 openssh-helpers >= 7.2p2-74.11.1	Patchnames: SUSE-SLE-DESKTOP-12-SP2-2017-2009
SUSE Linux Enterprise Desktop 12 SP3	openssh >= 7.2p2-74.11.1 openssh-askpass-gnome >= 7.2p2-74.11.3 openssh-helpers >= 7.2p2-74.11.1	Patchnames: SUSE-SLE-DESKTOP-12-SP3-2017-2009
SUSE Linux Enterprise Desktop 12 SP4	openssh >= 7.2p2-74.25.1 openssh-helpers >= 7.2p2-74.25.1
SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5	openssh >= 7.2p2-74.45.1 openssh-fips >= 7.2p2-74.45.1 openssh-helpers >= 7.2p2-74.45.1
SUSE Linux Enterprise Point of Sale 11 SP3	openssh >= 6.2p2-0.41.5.1 openssh-askpass >= 6.2p2-0.41.5.1 openssh-askpass-gnome >= 6.2p2-0.41.5.1	Patchnames: sleposp3-openssh-13848
SUSE Linux Enterprise Server 11 SP3-LTSS	openssh >= 6.2p2-0.41.5.1 openssh-askpass >= 6.2p2-0.41.5.1 openssh-askpass-gnome >= 6.2p2-0.41.5.1	Patchnames: slessp3-openssh-13848
SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Server for SAP Applications 11 SP4	openssh >= 6.6p1-36.3.1 openssh-askpass-gnome >= 6.6p1-36.3.1 openssh-fips >= 6.6p1-36.3.1 openssh-helpers >= 6.6p1-36.3.1	Patchnames: slessp4-openssh-13719
SUSE Linux Enterprise Server 11-SECURITY	openssh-openssl1 >= 6.6p1-19.3.1 openssh-openssl1-helpers >= 6.6p1-19.3.1	Patchnames: secsp3-openssh-openssl1-13777
SUSE Linux Enterprise Server 12 SP1-LTSS	openssh >= 6.6p1-54.15.2 openssh-askpass-gnome >= 6.6p1-54.15.1 openssh-fips >= 6.6p1-54.15.2 openssh-helpers >= 6.6p1-54.15.2	Patchnames: SUSE-SLE-SERVER-12-SP1-2018-1876
SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP2	openssh >= 7.2p2-74.11.1 openssh-askpass-gnome >= 7.2p2-74.11.3 openssh-fips >= 7.2p2-74.11.1 openssh-helpers >= 7.2p2-74.11.1	Patchnames: SUSE-SLE-SERVER-12-SP2-2017-2009
SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3	openssh >= 7.2p2-74.11.1 openssh-askpass-gnome >= 7.2p2-74.11.3 openssh-fips >= 7.2p2-74.11.1 openssh-helpers >= 7.2p2-74.11.1	Patchnames: SUSE-SLE-SERVER-12-SP3-2017-2009
SUSE Linux Enterprise Server 12 SP4	openssh >= 7.2p2-74.25.1 openssh-fips >= 7.2p2-74.25.1 openssh-helpers >= 7.2p2-74.25.1
SUSE Linux Enterprise Server 12-LTSS	openssh >= 6.6p1-54.15.2 openssh-askpass-gnome >= 6.6p1-54.15.1 openssh-fips >= 6.6p1-54.15.2 openssh-helpers >= 6.6p1-54.15.2	Patchnames: SUSE-SLE-SERVER-12-2018-1876
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2	openssh >= 7.2p2-74.11.1 openssh-askpass-gnome >= 7.2p2-74.11.3 openssh-fips >= 7.2p2-74.11.1 openssh-helpers >= 7.2p2-74.11.1	Patchnames: SUSE-SLE-RPI-12-SP2-2017-2009
SUSE Linux Enterprise Server for SAP Applications 12 SP1	openssh >= 6.6p1-54.15.2 openssh-askpass-gnome >= 6.6p1-54.15.1 openssh-fips >= 6.6p1-54.15.2 openssh-helpers >= 6.6p1-54.15.2	Patchnames: SUSE-SLE-SAP-12-SP1-2018-1876

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Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
HPE Helion OpenStack 8	openssh	In progress
Magnum Orchestration	openssh	Released
SLES15-SP2-CHOST-BYOS-Aliyun	openssh	Not affected
SLES15-SP2-CHOST-BYOS-Azure	openssh	Not affected
SLES15-SP2-CHOST-BYOS-EC2	openssh	Not affected
SLES15-SP2-CHOST-BYOS-GCE	openssh	Not affected
SLES15-SP2-CHOST-BYOS-OpenStack	openssh	Not affected
SUSE Container as a Service Platform 2.0	openssh	Released
SUSE Linux Enterprise Desktop 12 SP2	openssh	Released
SUSE Linux Enterprise Desktop 12 SP3	openssh	Released
SUSE Linux Enterprise Point of Service 11 SP3	openssh	In progress
SUSE Linux Enterprise Server 11 SP3 LTSS	openssh	Released
SUSE Linux Enterprise Server 11 SP4	openssh	Released
SUSE Linux Enterprise Server 11 SP4 LTSS	openssh	Released
SUSE Linux Enterprise Server 12 LTSS	openssh	Released
SUSE Linux Enterprise Server 12 SP1 LTSS	openssh	Released
SUSE Linux Enterprise Server 12 SP2	openssh	Released
SUSE Linux Enterprise Server 12 SP2 BCL	openssh	In progress
SUSE Linux Enterprise Server 12 SP3	openssh	Released
SUSE Linux Enterprise Server 12 SP3 BCL	openssh	In progress
SUSE Linux Enterprise Server 12 SP3 ESPOS	openssh	In progress
SUSE Linux Enterprise Server 12 SP3 LTSS	openssh	In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP3	openssh	In progress
SUSE OpenStack Cloud 8	openssh	In progress
SUSE OpenStack Cloud Crowbar 8	openssh	In progress
Security Module for SUSE Linux Enterprise 11	openssh-openssl1	In progress
ses/7/ceph/ceph ses/7/cephcsi/cephcsi ses/7/rook/ceph	openssh	Not affected