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AUSCERT External Security Bulletin Redistribution
ESB-2018.3570
SUSE Security Update: Security update for openssh-openssl1
15 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: openssh-openssl1
Publisher: SUSE
Operating System: SUSE
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-15919 CVE-2018-15473
Reference: ESB-2018.3520
Original Bulletin:
https://www.suse.com/support/update/announcement/2018/suse-su-20183768-1/
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SUSE Security Update: Security update for openssh-openssl1
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:3768-1
Rating: moderate
References: #1091396 #1105010 #1106163 #964336
Cross-References: CVE-2018-15473 CVE-2018-15919
Affected Products:
SUSE Linux Enterprise Server 11-SECURITY
______________________________________________________________________________
An update that solves two vulnerabilities and has two fixes
is now available.
Description:
This update for openssh-openssl1 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-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)
Following non-security issues were fixed:
- Fix for sftp client because it returns wrong error code upon failure
(bsc#1091396)
- Stop leaking File descriptors (bsc#964336)
Patch Instructions:
To install this SUSE 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:
- SUSE Linux Enterprise Server 11-SECURITY:
zypper in -t patch secsp3-openssh-openssl1-13865=1
Package List:
- SUSE Linux Enterprise Server 11-SECURITY (i586 ia64 ppc64 s390x x86_64):
openssh-openssl1-6.6p1-19.6.1
openssh-openssl1-helpers-6.6p1-19.6.1
References:
https://www.suse.com/security/cve/CVE-2018-15473.html
https://www.suse.com/security/cve/CVE-2018-15919.html
https://bugzilla.suse.com/1091396
https://bugzilla.suse.com/1105010
https://bugzilla.suse.com/1106163
https://bugzilla.suse.com/964336
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