Vulnerability in Linux Kernel
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Linux Kernel
- Linux Kernel — versions 5.5
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Mrg — versions 2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- security.netapp.com/advisory/ntap-20201222-0001/
Frequently asked questions
- What is CVE-2020-1749?
- CVE-2020-1749 is a high-severity vulnerability in Linux Kernel, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2020-09-09.
- How severe is CVE-2020-1749?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-1749 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.