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Test ID:1.3.6.1.4.1.25623.1.1.4.2018.3540.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2018:3540-1)
Summary:The remote host is missing an update for the 'openssh' package(s) announced via the SUSE-SU-2018:3540-1 advisory.
Description:Summary:
The remote host is missing an update for the 'openssh' package(s) announced via the SUSE-SU-2018:3540-1 advisory.

Vulnerability Insight:
This update for openssh fixes the following issues:

Security issues fixed:
CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH
could be used by remote attackers to detect existence of users on a
target system when GSS2 is in use. OpenSSH developers do not want to
treat such a username enumeration (or 'oracle') as a vulnerability.
(bsc#1106163)

CVE-2017-15906: The process_open function in sftp-server.c in OpenSSH
did not properly prevent write operations in readonly mode, which
allowed attackers to create zero-length files. (bsc#1065000, bsc#1106726)

CVE-2016-10708: sshd allowed remote attackers to cause a denial of
service (NULL pointer dereference and daemon crash) via an
out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related
to kex.c and packet.c. (bsc#1076957)

CVE-2018-15473: OpenSSH was prone to a user existance oracle
vulnerability due to not delaying bailout for an invalid authenticating
user until after the packet containing the request has been fully
parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
(bsc#1105010)

CVE-2016-10012: Removed pre-auth compression support from the server to
prevent possible cryptographic attacks. (bsc#1016370)

Bugs fixed:
Fixed failing 'AuthorizedKeysCommand' within a 'Match User' block in
sshd_config (bsc#1105180)

Affected Software/OS:
'openssh' package(s) on SUSE Linux Enterprise Server 11-SP3, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Debuginfo 11-SP3

Solution:
Please install the updated package(s).

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2016-10012
Common Vulnerability Exposure (CVE) ID: CVE-2016-10708
Common Vulnerability Exposure (CVE) ID: CVE-2017-15906
Common Vulnerability Exposure (CVE) ID: CVE-2018-15473
Common Vulnerability Exposure (CVE) ID: CVE-2018-15919
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