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AUSCERT External Security Bulletin Redistribution
ESB-2019.2698
Security updates for the Linux Kernel (Live Patches)
19 July 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11478 CVE-2019-11477 CVE-2019-3846
Reference: ESB-2019.2661
ESB-2019.2626
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-20191882-1.html
https://www.suse.com/support/update/announcement/2019/suse-su-20191888-1.html
https://www.suse.com/support/update/announcement/2019/suse-su-20191889-1.html
Comment: This bulletin contains three (3) SUSE security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
SUSE Security Update: Security update for the Linux Kernel (L
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1882-1
Rating: important
References: #1136446 #1137597 #1140747
Cross-References: CVE-2019-11477 CVE-2019-11478 CVE-2019-3846
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15
______________________________________________________________________________
ive Patch 9 for
SLE 15)
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.12.14-150_14 fixes several issues.
The following security issues were fixed:
o CVE-2019-11477: Jonathan Looney discovered that the TCP_SKB_CB(skb)->
tcp_gso_segs value was subject to an integer overflow when handling TCP
Selective Acknowledgments (SACKs). A remote attacker could use this to
cause a denial of service. (bsc#1137586)
o CVE-2019-11478: Jonathan Looney discovered that the TCP retransmission
queue implementation in tcp_fragment could be fragmented when handling
certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker
could use this to cause a denial of service. (bsc#1137586)
o CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and
possibly escalate privileges was found in the mwifiex kernel module while
connecting to a malicious wireless network (bsc#1136424).
This update contains a regression fix for CVE-2019-11477 and CVE-2019-11478
(bsc#1140747).
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:
o SUSE Linux Enterprise Module for Live Patching 15:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-1878=1
SUSE-SLE-Module-Live-Patching-15-2019-1879=1
SUSE-SLE-Module-Live-Patching-15-2019-1880=1
SUSE-SLE-Module-Live-Patching-15-2019-1881=1
SUSE-SLE-Module-Live-Patching-15-2019-1882=1
SUSE-SLE-Module-Live-Patching-15-2019-1883=1
SUSE-SLE-Module-Live-Patching-15-2019-1884=1
SUSE-SLE-Module-Live-Patching-15-2019-1885=1
SUSE-SLE-Module-Live-Patching-15-2019-1886=1
SUSE-SLE-Module-Live-Patching-15-2019-1887=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
kernel-livepatch-4_12_14-150_14-default-3-2.1
kernel-livepatch-4_12_14-150_14-default-debuginfo-3-2.1
kernel-livepatch-4_12_14-150_17-default-3-2.1
kernel-livepatch-4_12_14-150_17-default-debuginfo-3-2.1
kernel-livepatch-4_12_14-25_13-default-8-2.1
kernel-livepatch-4_12_14-25_13-default-debuginfo-8-2.1
kernel-livepatch-4_12_14-25_16-default-7-2.1
kernel-livepatch-4_12_14-25_16-default-debuginfo-7-2.1
kernel-livepatch-4_12_14-25_19-default-7-2.1
kernel-livepatch-4_12_14-25_19-default-debuginfo-7-2.1
kernel-livepatch-4_12_14-25_22-default-6-2.1
kernel-livepatch-4_12_14-25_22-default-debuginfo-6-2.1
kernel-livepatch-4_12_14-25_25-default-5-2.1
kernel-livepatch-4_12_14-25_25-default-debuginfo-5-2.1
kernel-livepatch-4_12_14-25_28-default-4-2.1
kernel-livepatch-4_12_14-25_28-default-debuginfo-4-2.1
kernel-livepatch-4_12_14-25_3-default-11-2.1
kernel-livepatch-4_12_14-25_3-default-debuginfo-11-2.1
kernel-livepatch-4_12_14-25_6-default-10-2.1
kernel-livepatch-4_12_14-25_6-default-debuginfo-10-2.1
References:
o https://www.suse.com/security/cve/CVE-2019-11477.html
o https://www.suse.com/security/cve/CVE-2019-11478.html
o https://www.suse.com/security/cve/CVE-2019-3846.html
o https://bugzilla.suse.com/1136446
o https://bugzilla.suse.com/1137597
o https://bugzilla.suse.com/1140747
- -----------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1888-1
Rating: important
References: #1140747
Cross-References: CVE-2019-11478
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP1
SUSE Linux Enterprise Module for Live Patching 15
______________________________________________________________________________
Patch 2 for
SLE 15 SP1)
An update that fixes one vulnerability is now available.
Description:
This update for the Linux Kernel 4.12.14-197_7 fixes one issue.
The following security issue was fixed:
This update contains a regression fix for CVE-2019-11477 and CVE-2019-11478
(bsc#1140747).
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:
o SUSE Linux Enterprise Module for Live Patching 15-SP1:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2019-1890=1
SUSE-SLE-Module-Live-Patching-15-SP1-2019-1891=1
o SUSE Linux Enterprise Module for Live Patching 15:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-1888=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):
kernel-livepatch-4_12_14-197_4-default-3-2.1
kernel-livepatch-4_12_14-197_7-default-2-2.1
o SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
kernel-livepatch-4_12_14-150_22-default-2-2.1
kernel-livepatch-4_12_14-150_22-default-debuginfo-2-2.1
References:
o https://www.suse.com/security/cve/CVE-2019-11478.html
o https://bugzilla.suse.com/1140747
- ------------------------------------------------------------------------------
SUSE Security Update: Security update for the Linux Kernel (Live
______________________________________________________________________________
Announcement ID: SUSE-SU-2019:1889-1
Rating: important
References: #1137597 #1140747
Cross-References: CVE-2019-11477 CVE-2019-11478
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP1
______________________________________________________________________________
Patch 0 for
SLE 15 SP1)
An update that fixes two vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.12.14-195 fixes several issues.
The following security issues were fixed:
o CVE-2019-11477: Jonathan Looney discovered that the TCP_SKB_CB(skb)->
tcp_gso_segs value was subject to an integer overflow when handling TCP
Selective Acknowledgments (SACKs). A remote attacker could use this to
cause a denial of service. (bsc#1137586)
o CVE-2019-11478: Jonathan Looney discovered that the TCP retransmission
queue implementation in tcp_fragment could be fragmented when handling
certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker
could use this to cause a denial of service. (bsc#1137586)
This update contains a regression fix for CVE-2019-11477 and CVE-2019-11478
(bsc#1140747).
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:
o SUSE Linux Enterprise Module for Live Patching 15-SP1:
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2019-1889=1
Package List:
o SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):
kernel-livepatch-4_12_14-195-default-4-10.1
References:
o https://www.suse.com/security/cve/CVE-2019-11477.html
o https://www.suse.com/security/cve/CVE-2019-11478.html
o https://bugzilla.suse.com/1137597
o https://bugzilla.suse.com/1140747
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