CVE-2020-1749

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
redhatCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
VendorProductVersion
linuxlinux_kernel
-
redhatenterprise_linux
7.0
redhatenterprise_mrg
2.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
focal
not-affected
eoan
Fixed 5.3.0-40.32
released
bionic
Fixed 4.15.0-106.107
released
xenial
Fixed 4.4.0-184.214
released
trusty
ignored
linux-aws
focal
not-affected
eoan
Fixed 5.3.0-1011.12
released
bionic
Fixed 4.15.0-1073.77
released
xenial
Fixed 4.4.0-1109.120
released
trusty
Fixed 4.4.0-1073.77
released
linux-aws-5.0
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-aws-5.3
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-hwe
focal
dne
eoan
dne
bionic
dne
xenial
Fixed 4.15.0-1073.77~16.04.1
released
trusty
dne
linux-azure
focal
not-affected
eoan
Fixed 5.3.0-1013.14
released
bionic
ignored
xenial
Fixed 4.15.0-1089.99~16.04.1
released
trusty
Fixed 4.15.0-1089.99~14.04.1
released
linux-azure-4.15
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1089.99
released
xenial
dne
trusty
dne
linux-azure-5.3
focal
dne
eoan
dne
bionic
Fixed 5.3.0-1013.14~18.04.1
released
xenial
dne
trusty
dne
linux-azure-edge
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gcp
focal
not-affected
eoan
Fixed 5.3.0-1012.13
released
bionic
ignored
xenial
Fixed 4.15.0-1077.87~16.04.1
released
trusty
dne
linux-gcp-4.15
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1077.87
released
xenial
dne
trusty
dne
linux-gcp-5.3
focal
dne
eoan
dne
bionic
Fixed 5.3.0-1012.13~18.04.1
released
xenial
dne
trusty
dne
linux-gcp-edge
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-4.15
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1063.66
released
xenial
dne
trusty
dne
linux-gke-5.0
focal
dne
eoan
dne
bionic
Fixed 5.0.0-1042.43
released
xenial
dne
trusty
dne
linux-gke-5.3
focal
dne
eoan
dne
bionic
Fixed 5.3.0-1012.13~18.04.1
released
xenial
dne
trusty
dne
linux-hwe
focal
dne
eoan
dne
bionic
Fixed 5.3.0-40.32~18.04.1
released
xenial
Fixed 4.15.0-106.107~16.04.1
released
trusty
dne
linux-hwe-edge
focal
dne
eoan
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-kvm
focal
not-affected
eoan
Fixed 5.3.0-1010.11
released
bionic
Fixed 4.15.0-1067.68
released
xenial
Fixed 4.4.0-1075.82
released
trusty
dne
linux-lts-trusty
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
Fixed 4.4.0-184.214~14.04.1
released
linux-oem
focal
dne
eoan
ignored
bionic
Fixed 4.15.0-1087.97
released
xenial
ignored
trusty
dne
linux-oem-5.6
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-osp1
focal
dne
eoan
ignored
bionic
Fixed 5.0.0-1059.64
released
xenial
dne
trusty
dne
linux-oracle
focal
not-affected
eoan
Fixed 5.3.0-1009.10
released
bionic
Fixed 4.15.0-1045.49
released
xenial
Fixed 4.15.0-1045.49~16.04.1
released
trusty
dne
linux-oracle-5.0
focal
dne
eoan
dne
bionic
ignored
xenial
dne
trusty
dne
linux-oracle-5.3
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi2
focal
not-affected
eoan
Fixed 5.3.0-1018.20
released
bionic
Fixed 4.15.0-1063.67
released
xenial
Fixed 4.4.0-1134.143
released
trusty
dne
linux-raspi2-5.3
focal
dne
eoan
dne
bionic
Fixed 5.3.0-1018.20~18.04.1
released
xenial
dne
trusty
dne
linux-riscv
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-snapdragon
focal
dne
eoan
dne
bionic
Fixed 4.15.0-1080.87
released
xenial
Fixed 4.4.0-1138.146
released
trusty
dne
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749
https://security.netapp.com/advisory/ntap-20201222-0001/
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749
https://security.netapp.com/advisory/ntap-20201222-0001/