A ssh-audit security update has been released for SUSE Linux Enterprise 15 SP3.

openSUSE-SU-2021:1390-1: moderate: Security update for ssh-audit

openSUSE Security Update: Security update for ssh-audit
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Announcement ID: openSUSE-SU-2021:1390-1
Rating: moderate
References:
Cross-References: CVE-2018-15473
CVSS scores:
CVE-2018-15473 (NVD) : 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVE-2018-15473 (SUSE): 5.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected Products:
openSUSE Backports SLE-15-SP3
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An update that fixes one vulnerability is now available.

Description:

This update for ssh-audit fixes the following issues:

ssh-audit was updated to version 2.5.0

* Fixed crash when running host key tests.
* Handles server connection failures more gracefully.
* Now prints JSON with indents when -jj is used (useful for debugging).
* Added MD5 fingerprints to verbose output.
* Added -d/--debug option for getting debugging output.
* Updated JSON output to include MD5 fingerprints. Note that this results
in a breaking change in the 'fingerprints' dictionary format.
* Updated OpenSSH 8.1 (and earlier) policies to include rsa-sha2-512 and
rsa-sha2-256.
* Added OpenSSH v8.6 & v8.7 policies.
* Added 3 new key exchanges:

+ gss-gex-sha1-eipGX3TCiQSrx573bT1o1Q==
+ gss-group1-sha1-eipGX3TCiQSrx573bT1o1Q==
+ gss-group14-sha1-eipGX3TCiQSrx573bT1o1Q==
* Added 3 new MACs:

+ hmac-ripemd160-96
+ AEAD_AES_128_GCM
+ AEAD_AES_256_GCM

Update to version 2.4.0

* Added multi-threaded scanning support.
* Added version check for OpenSSH user enumeration (CVE-2018-15473).
* Added deprecation note to host key types based on SHA-1.
* Added extra warnings for SSHv1.
* Added built-in hardened OpenSSH v8.5 policy.
* Upgraded warnings to failures for host key types based on SHA-1
* Fixed crash when receiving unexpected response during host key test.
* Fixed hang against older Cisco devices during host key test & gex test.
* Fixed improper termination while scanning multiple targets when
one target returns an error.
* Dropped support for Python 3.5 (which reached EOL in Sept.2020)
* Added 1 new key exchange: sntrup761x25519-sha512@openssh.com.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Backports SLE-15-SP3:

zypper in -t patch openSUSE-2021-1390=1


Package List:

- openSUSE Backports SLE-15-SP3 (noarch):

ssh-audit-2.5.0-bp153.2.3.1

References:

  https://www.suse.com/security/cve/CVE-2018-15473.html