CVE-2020-1749
Published: 4 March 2020
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.
From the Ubuntu security team
Xiumei Mu discovered that the IPSec implementation in the Linux kernel did not properly encrypt IPv6 traffic in some situations. An attacker could use this to expose sensitive information.
CVSS 3 base score: 7.5
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-106.107)
|
eoan |
Released
(5.3.0-40.32)
|
|
focal |
Not vulnerable
(5.4.0-18.22)
|
|
precise |
Ignored
(was needs-triage ESM criteria)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.4.0-184.214)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1073.77)
|
eoan |
Released
(5.3.0-1011.12)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
precise |
Does not exist
|
|
trusty |
Released
(4.4.0-1073.77)
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.4.0-1109.120)
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needed now end-of-life)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1016.17~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.15.0-1073.77~16.04.1)
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needed now end-of-life)
|
eoan |
Released
(5.3.0-1013.14)
|
|
focal |
Not vulnerable
(5.4.0-1006.6)
|
|
precise |
Does not exist
|
|
trusty |
Released
(4.15.0-1089.99~14.04.1)
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.15.0-1089.99~16.04.1)
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1089.99)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1013.14~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needed now end-of-life)
|
eoan |
Released
(5.3.0-1012.13)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.15.0-1077.87~16.04.1)
|
|
linux-gcp-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1077.87)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1012.13~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1063.66)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1042.43)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1012.13~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-40.32~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.15.0-106.107~16.04.1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Ignored
(was needs-triage now end-of-life)
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1067.68)
|
eoan |
Released
(5.3.0-1010.11)
|
|
focal |
Not vulnerable
(5.4.0-1004.4)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.4.0-1075.82)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Ignored
(was needs-triage ESM criteria)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Released
(4.4.0-184.214~14.04.1)
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1087.97)
|
eoan |
Ignored
(reached end-of-life)
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Ignored
(was needs-triage now end-of-life)
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.6.0-1007.7)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1059.64)
|
eoan |
Ignored
(reached end-of-life)
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1045.49)
|
eoan |
Released
(5.3.0-1009.10)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.15.0-1045.49~16.04.1)
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needed now end-of-life)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-raspi Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-1007.7)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1063.67)
|
eoan |
Released
(5.3.0-1018.20)
|
|
focal |
Not vulnerable
(5.4.0-1004.4)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.4.0-1134.143)
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1018.20~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-riscv Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-24.28)
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Does not exist
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1080.87)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.5~rc1)
|
|
xenial |
Released
(4.4.0-1138.146)
|
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1749
- https://access.redhat.com/security/cve/CVE-2020-1749
- https://bugzilla.redhat.com/show_bug.cgi?id=1809833
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=6c8991f41546
- https://ubuntu.com/security/notices/USN-4391-1
- https://ubuntu.com/security/notices/USN-4390-1
- https://ubuntu.com/security/notices/USN-4388-1
- NVD
- Launchpad
- Debian