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CVE-2019-11477

HIGH
Published 2019-06-18T23:34:51.026970Z
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CVSS Score

V3.0
7.5
/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.964
probability
of exploitation in the wild

There is a 96.4% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.997
Higher than 99.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Linux

Linux kernel

Affected Versions:

4.4 4.9 4.14 4.19 5.1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-748j-px2m-cwgh

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2019-11477
WEB https://www.us-cert.gov/ics/advisories/icsa-19-253-03
WEB https://www.synology.com/security/advisory/Synology_SA_19_28
WEB https://www.oracle.com/security-alerts/cpuoct2020.html
WEB https://www.oracle.com/security-alerts/cpujan2020.html
WEB https://www.kb.cert.org/vuls/id/905115
WEB https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic
WEB https://support.f5.com/csp/article/K78234183
WEB https://security.netapp.com/advisory/ntap-20190625-0001
WEB https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006
WEB https://kc.mcafee.com/corporate/index?page=content&id=SB10287
WEB https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
WEB https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md
WEB https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff
WEB https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf
WEB https://access.redhat.com/security/vulnerabilities/tcpsack
WEB https://access.redhat.com/errata/RHSA-2019:1699
WEB https://access.redhat.com/errata/RHSA-2019:1602
WEB https://access.redhat.com/errata/RHSA-2019:1594
WEB http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html
WEB http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
WEB http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
WEB http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en
WEB http://www.openwall.com/lists/oss-security/2019/06/20/3
WEB http://www.openwall.com/lists/oss-security/2019/06/28/2
WEB http://www.openwall.com/lists/oss-security/2019/07/06/3
WEB http://www.openwall.com/lists/oss-security/2019/07/06/4
WEB http://www.openwall.com/lists/oss-security/2019/10/24/1
WEB http://www.openwall.com/lists/oss-security/2019/10/29/3
WEB http://www.vmware.com/security/advisories/VMSA-2019-0010.html

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: February 27, 2024

References

https://www.kb.cert.org/vuls/id/905115
http://www.openwall.com/lists/oss-security/2019/06/20/3
https://access.redhat.com/errata/RHSA-2019:1594
https://access.redhat.com/errata/RHSA-2019:1602
http://www.openwall.com/lists/oss-security/2019/06/28/2
http://www.openwall.com/lists/oss-security/2019/07/06/3
http://www.openwall.com/lists/oss-security/2019/07/06/4
https://access.redhat.com/errata/RHSA-2019:1699
http://www.openwall.com/lists/oss-security/2019/10/24/1
http://www.openwall.com/lists/oss-security/2019/10/29/3
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=3b4929f65b0d8249f19a50245cd88ed1a2f78cff
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://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
https://www.synology.com/security/advisory/Synology_SA_19_28
https://security.netapp.com/advisory/ntap-20190625-0001/
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0006
https://kc.mcafee.com/corporate/index?page=content&id=SB10287
http://www.vmware.com/security/advisories/VMSA-2019-0010.html
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
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191225-01-kernel-en
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
Published: 2019-06-18T23:34:51.026970Z
Last Modified: 2024-09-17T02:21:15.995Z
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