Security update for the Linux Kernel (Live Patch 10 for SLE 15)
This update for the Linux Kernel 4.12.14-150_17 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) - 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).
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
This update for the Linux Kernel 4.12.14-150_17 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) - 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).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1136446
- https://bugzilla.suse.com/1137597
- https://bugzilla.suse.com/1140747
- https://www.suse.com/security/cve/CVE-2019-11477
- https://www.suse.com/security/cve/CVE-2019-11478
- https://www.suse.com/security/cve/CVE-2019-3846
- https://www.suse.com/support/update/announcement/2019/suse-su-20191882-1/