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AUSCERT External Security Bulletin Redistribution
ESB-2018.2762
Security update for openssh-openssl1
17 September 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: openssh-openssl1
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Access Privileged Data -- Existing Account
Create Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-15906 CVE-2016-10708 CVE-2016-10012
CVE-2008-1483
Reference: ESB-2018.2713
ESB-2008.0392
Original Bulletin:
https://www.suse.com/support/update/announcement/2018/suse-su-20182719-1/
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SUSE Security Update: Security update for openssh-openssl1
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:2719-1
Rating: important
References: #1016370 #1017099 #1023275 #1053972 #1065000
#1069509 #1076957
Cross-References: CVE-2008-1483 CVE-2016-10012 CVE-2016-10708
CVE-2017-15906
Affected Products:
SUSE Linux Enterprise Server 11-SECURITY
______________________________________________________________________________
An update that solves four vulnerabilities and has three
fixes is now available.
Description:
This update for openssh-openssl1 fixes the following issues:
These security issues were fixed:
- CVE-2016-10708: Prevent NULL pointer dereference via an out-of-sequence
NEWKEYS message allowed remote attackers to cause a denial of service
(bsc#1076957).
- CVE-2017-15906: The process_open function did not properly prevent write
operations in readonly mode, which allowed attackers to create
zero-length files (bsc#1065000).
- CVE-2016-10012: The shared memory manager (associated with
pre-authentication compression) did not ensure that a bounds check is
enforced by all compilers, which might have allowed local users to gain
privileges by leveraging access to a sandboxed privilege-separation
process, related to the m_zback and m_zlib data structures (bsc#1016370).
- CVE-2008-1483: Prevent local users from hijacking forwarded X
connections by causing ssh to set DISPLAY to :10, even when another
process is listening on the associated port. This problem was
reontroduced by another patch and was previously fixed by another update
(bsc#1069509).
These non-security issues were fixed:
- Remove duplicate KEX method (bsc#1053972)
- New switch for printing diagnostic messages in sftp client's batch mode
(bsc#1023275)
- Enable case-insensitive hostname matching (bsc#1017099)
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-openssl1-13777=1
Package List:
- SUSE Linux Enterprise Server 11-SECURITY (i586 ia64 ppc64 s390x x86_64):
openssh-openssl1-6.6p1-19.3.1
openssh-openssl1-helpers-6.6p1-19.3.1
References:
https://www.suse.com/security/cve/CVE-2008-1483.html
https://www.suse.com/security/cve/CVE-2016-10012.html
https://www.suse.com/security/cve/CVE-2016-10708.html
https://www.suse.com/security/cve/CVE-2017-15906.html
https://bugzilla.suse.com/1016370
https://bugzilla.suse.com/1017099
https://bugzilla.suse.com/1023275
https://bugzilla.suse.com/1053972
https://bugzilla.suse.com/1065000
https://bugzilla.suse.com/1069509
https://bugzilla.suse.com/1076957
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