CVE-2020-1749
Severity
7.5HIGH
EPSS
0.2%
top 63.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 9
Latest updateMay 24
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6
Affected Packages3 packages
Also affects: Enterprise Linux 7.0
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-pw98-cq7c-645p: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6↗2022-05-24
OSV▶
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↗2020-09-09
CVEList▶
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↗2020-09-09
📋Vendor Advisories
5Debian▶
CVE-2020-1749: linux - A flaw was found in the Linux kernel's implementation of some networking protoco...↗2020