Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | - |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Mrg | 2.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749Issue TrackingPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20201222-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749Issue TrackingPatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20201222-0001/
FAQ
What is CVE-2020-1749?
CVE-2020-1749 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 kern...
How severe is CVE-2020-1749?
CVE-2020-1749 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-1749?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Redhat Enterprise Mrg.