CVE-2020-1749

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Summary

CVECVE-2020-1749
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-09 15:15:00 UTC
Updated2023-11-07 03:19:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-319

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel - All All All
Operating System Linux Linux Kernel - All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Application Redhat Enterprise Mrg 2.0 All All All
Operating System Redhat Enterprise Mrg 2.0 All All All
Application Redhat Enterprise Mrg 2.0 All All All

References

ReferenceSourceLinkTags
CVE-2020-1749 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
1809833 – (CVE-2020-1749) CVE-2020-1749 kernel: some ipv6 protocols not encrypted over ipsec tunnel CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 174806 SUSE Enterprise Linux Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP2) (SUSE-SU-2021:0835-1)
  • 174874 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 38 for SLE 12 SP3) (SUSE-SU-2021:1074-1)
  • 352300 Amazon Linux Security Advisory for kernel: ALAC2012-2020-020
  • 352344 Amazon Linux Security Advisory for kernel-livepatch: ALAS2LIVEPATCH-2020-024
  • 352345 Amazon Linux Security Advisory for kernel-livepatch: ALAS2LIVEPATCH-2020-023
  • 352346 Amazon Linux Security Advisory for kernel-livepatch: ALAS2LIVEPATCH-2020-022
  • 352347 Amazon Linux Security Advisory for kernel-livepatch: ALAS2LIVEPATCH-2020-021
  • 377065 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2020:0113)
  • 750014 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:1623-1)
  • 750376 OpenSUSE Security Update for RT kernel (openSUSE-SU-2021:0242-1)
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