CVE-2020-1749
This would allow anyone in between the two endpoints to read the traffic unencrypted.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.24% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-319
- Affected
- linux/linux kernel · redhat/enterprise linux · redhat/enterprise mrg
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20201222-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1749Issue Tracking, Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20201222-0001/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.