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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.gaia:def:57
[Rus]
Version
2
Class
vulnerability
ALTXid
288594
Language
English
Severity
High
Title
Check Point response to TCP SACK PANIC - Linux Kernel vulnerabilities (CVE-2019-11478)
Description
The Linux kernel is vulnerable to a flaw that allows attackers to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. An attacker might be able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. This could cause the CPU to spend excessive time attempting to reconstruct the list creating a Denial Of Service.
Family
gaia
Platform
Gaia
Product
Check Point
Reference
CVE: CVE-2019-11478
CVE: CVE-2019-11478
Id:
CVE-2019-11478
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11478
Comment
: Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. 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 f070ef2ac66716357066b683fb0baf55f8191a2e.
CVSSv2 Score:
5
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
7.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=f070ef2ac66716357066b683fb0baf55f8191a2e (MISC)
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md (MISC)
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic (MISC)
https://access.redhat.com/security/vulnerabilities/tcpsack (MISC)
https://support.f5.com/csp/article/K26618426 (CONFIRM)
http://packetstormsecurity.com/files/153346/Kernel-Live-Patch-Security-Notice-LSN-0052-1.html (MISC)
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 (CONFIRM)
VU#905115 (CERT-VN)
https://www.synology.com/security/advisory/Synology_SA_19_28 (CONFIRM)
https://security.netapp.com/advisory/ntap-20190625-0001/ (CONFIRM)
RHSA-2019:1594 (REDHAT)
RHSA-2019:1602 (REDHAT)
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0007 (CONFIRM)
https://kc.mcafee.com/corporate/index?page=content&id=SB10287 (CONFIRM)
[oss-security] 20190628 Re: linux-distros membership application - Microsoft (MLIST)
http://www.vmware.com/security/advisories/VMSA-2019-0010.html (CONFIRM)
[oss-security] 20190706 Re: linux-distros membership application - Microsoft (MLIST)
[oss-security] 20190706 Re: linux-distros membership application - Microsoft (MLIST)
RHSA-2019:1699 (REDHAT)
20190722 [SECURITY] [DSA 4484-1] linux security update (BUGTRAQ)
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html (MISC)
https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf (CONFIRM)
https://www.us-cert.gov/ics/advisories/icsa-19-253-03 (MISC)
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html (MISC)
[oss-security] 20191023 Membership application for linux-distros - VMware (MLIST)
[oss-security] 20191029 Re: Membership application for linux-distros - VMware (MLIST)
https://www.oracle.com/security-alerts/cpujan2020.html (MISC)
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt (CONFIRM)
https://www.oracle.com/security-alerts/cpuoct2020.html (MISC)
VENDOR: sk156192
VENDOR: sk156192
Id:
sk156192
Reference:
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk156192
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