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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.24% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 68.6% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-09-09 14:35Z6 YR AGO
- Last updated
- 2024-08-04 06:46Z2 YR AGO
- Reserved
- 2019-11-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-319Cleartext Transmission of Sensitive InformationBase
- Data version
- 5.1
- Document digest
- 2777113c23163db0eaba593f3c986a17949cc16430ff64e5ed1ef7ac1eda29e4
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20201222-0001/
07 Fixed in
Debian 12
- linux Fixed in 5.4.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.4.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.4.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-184.214
- linux-aws Fixed in 4.4.0-1109.120
- linux-aws-hwe Fixed in 4.15.0-1073.77~16.04.1
- linux-azure Fixed in 4.15.0-1089.99~16.04.1
- linux-gcp Fixed in 4.15.0-1077.87~16.04.1
- linux-hwe Fixed in 4.15.0-106.107~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1075.82
- linux-oracle Fixed in 4.15.0-1045.49~16.04.1
- linux-raspi2 Fixed in 4.4.0-1134.143
- linux-snapdragon Fixed in 4.4.0-1138.146
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-106.107
- linux-aws Fixed in 4.15.0-1073.77
- linux-aws-5.0 No fix yet
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1089.99
- linux-azure-5.3 Fixed in 5.3.0-1013.14~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1077.87
- linux-gcp-5.3 Fixed in 5.3.0-1012.13~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1063.66
- linux-gke-5.0 Fixed in 5.0.0-1042.43
- linux-gke-5.3 Fixed in 5.3.0-1012.13~18.04.1
- linux-hwe Fixed in 5.3.0-40.32~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1067.68
- linux-oem Fixed in 4.15.0-1087.97
- linux-oem-osp1 Fixed in 5.0.0-1059.64
- linux-oracle Fixed in 4.15.0-1045.49
- linux-oracle-5.0 No fix yet
- linux-raspi2 Fixed in 4.15.0-1063.67
- linux-raspi2-5.3 Fixed in 5.3.0-1018.20~18.04.1
- linux-snapdragon Fixed in 4.15.0-1080.87
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1073.77Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1089.99~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-184.214~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- linux-azure-fde-5.15 Fixed in 5.15.0-1114.123~20.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1041.46Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2018.18Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2006.7Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1034.39Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.