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Sicherheit: Zwei Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in Linux
ID: SUSE-SU-2019:1924-1
Distribution: SUSE
Plattformen: SUSE Linux Enterprise Server for SAP 12-SP1, SUSE Linux Enterprise Server 12-SP1-LTSS
Datum: Di, 23. Juli 2019, 19:32
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11477
Applikationen: Linux

Originalnachricht


SUSE Security Update: Security update for the Linux Kernel (Live Patch 31
for SLE 12 SP1)
______________________________________________________________________________

Announcement ID: SUSE-SU-2019:1924-1
Rating: important
References: #1137597 #1140747
Cross-References: CVE-2019-11477 CVE-2019-11478
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
SUSE Linux Enterprise Server 12-SP1-LTSS
______________________________________________________________________________

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 3.12.74-60_64_104 fixes several issues.

The following security issues were fixed:

- 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)
- 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:

- SUSE Linux Enterprise Server for SAP 12-SP1:

zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1923=1
SUSE-SLE-SAP-12-SP1-2019-1924=1 SUSE-SLE-SAP-12-SP1-2019-1925=1 SUSE-SLE-SAP-12-SP1-2019-1926=1

- SUSE Linux Enterprise Server 12-SP1-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-1923=1
SUSE-SLE-SERVER-12-SP1-2019-1924=1 SUSE-SLE-SERVER-12-SP1-2019-1925=1 SUSE-SLE-SERVER-12-SP1-2019-1926=1



Package List:

- SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

kgraft-patch-3_12_74-60_64_104-default-8-2.1
kgraft-patch-3_12_74-60_64_104-xen-8-2.1
kgraft-patch-3_12_74-60_64_107-default-8-2.1
kgraft-patch-3_12_74-60_64_107-xen-8-2.1
kgraft-patch-3_12_74-60_64_110-default-4-2.1
kgraft-patch-3_12_74-60_64_110-xen-4-2.1
kgraft-patch-3_12_74-60_64_99-default-10-2.1
kgraft-patch-3_12_74-60_64_99-xen-10-2.1

- SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

kgraft-patch-3_12_74-60_64_104-default-8-2.1
kgraft-patch-3_12_74-60_64_104-xen-8-2.1
kgraft-patch-3_12_74-60_64_107-default-8-2.1
kgraft-patch-3_12_74-60_64_107-xen-8-2.1
kgraft-patch-3_12_74-60_64_110-default-4-2.1
kgraft-patch-3_12_74-60_64_110-xen-4-2.1
kgraft-patch-3_12_74-60_64_99-default-10-2.1
kgraft-patch-3_12_74-60_64_99-xen-10-2.1


References:

https://www.suse.com/security/cve/CVE-2019-11477.html
https://www.suse.com/security/cve/CVE-2019-11478.html
https://bugzilla.suse.com/1137597
https://bugzilla.suse.com/1140747

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