CVE-2019-11477

 

Published at: - 19-06-2019 02:15

Last modified: - 17-01-2023 10:28

Total changes: - 5

Description

Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
• https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic
• https://access.redhat.com/security/vulnerabilities/tcpsack
• https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff
• https://support.f5.com/csp/article/K78234183
• http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
• VU#905115-Third Party Advisory, US Government Resource
• [oss-security] 20190620 Re: Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service issues-Mailing List, Third Party Advisory
• https://www.synology.com/security/advisory/Synology_SA_19_28
• https://security.netapp.com/advisory/ntap-20190625-0001/
• RHSA-2019:1594-Third Party Advisory
• RHSA-2019:1602-Third Party Advisory
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006
• https://kc.mcafee.com/corporate/index?page=content&id=SB10287
• [oss-security] 20190628 Re: linux-distros membership application - Microsoft-Mailing List, Third Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2019-0010.html
• [oss-security] 20190706 Re: linux-distros membership application - Microsoft-Mailing List, Third Party Advisory
• [oss-security] 20190706 Re: linux-distros membership application - Microsoft-Mailing List, Third Party Advisory
• RHSA-2019:1699-Third Party Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf
• https://www.us-cert.gov/ics/advisories/icsa-19-253-03
• http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
• [oss-security] 20191023 Membership application for linux-distros - VMware-Mailing List, Third Party Advisory
• [oss-security] 20191029 Re: Membership application for linux-distros - VMware-Mailing List, Third Party Advisory
• http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en
• https://www.oracle.com/security-alerts/cpujan2020.html
• http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
• https://www.oracle.com/security-alerts/cpuoct2020.html

 

Keywords

NVD

 

CVE-2019-11477

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures