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CVE-2020-1749

Published: Sep 9, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-319
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.2%
Top 35.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending the data unencrypted. This would allow anyone in between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-319

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
kernelLinux Kernel
On-prem
Operating Systems / linux-distro
linux kernellinux
On-premOS
Operating Systems
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
linux kerneloss-projectOperating Systemsaka linux, linux-kernel
linuxoss-projectOperating Systemsaka the linux kernel
redhatcommercialUSOperating Systemsaka red hat
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://access.redhat.com/security/cve/cve-2020-1749
access.redhat.com
https://access.redhat.com/security/cve/CVE-2020-1749
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1809833
bugzilla.redhat.com
and 19 more references View all →

Timeline

Published
Sep 9, 2020
Last Updated
Nov 21, 2024

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