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SUSE-SU-2019:1924-1 Not scored

Security update for the Linux Kernel (Live Patch 33 for SLE 12 SP1)

This update for the Linux Kernel 3.12.74-60_64_110 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).

Exploit probability Not scored
Published July 23, 2019
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise Server 12 SP1-LTSS kgraft-patch-SLE12-SP1_Update_30
SUSE:Linux Enterprise Server 12 SP1-LTSS kgraft-patch-SLE12-SP1_Update_31
SUSE:Linux Enterprise Server 12 SP1-LTSS kgraft-patch-SLE12-SP1_Update_32
SUSE:Linux Enterprise Server 12 SP1-LTSS kgraft-patch-SLE12-SP1_Update_33
SUSE:Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-SLE12-SP1_Update_30
SUSE:Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-SLE12-SP1_Update_31
SUSE:Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-SLE12-SP1_Update_32
SUSE:Linux Enterprise Server for SAP Applications 12 SP1 kgraft-patch-SLE12-SP1_Update_33

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2019:1924-1

This update for the Linux Kernel 3.12.74-60_64_110 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).

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05 / REFERENCES

Further evidence