SynopsisThe remote SUSE host is missing one or more security updates.
DescriptionThis 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).
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionTo 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