5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
55.1%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-106.107 | UNKNOWN |
ubuntu | 19.10 | noarch | linux | < 5.3.0-40.32 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-184.214 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1073.77 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-aws | < 5.3.0-1011.12 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1073.77 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1109.120 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1073.77~16.04.1 | UNKNOWN |
ubuntu | 19.10 | noarch | linux-azure | < 5.3.0-1013.14 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-azure | < 4.15.0-1089.99~14.04.1 | UNKNOWN |
access.redhat.com/security/cve/CVE-2020-1749
bugzilla.redhat.com/show_bug.cgi?id=1809833
git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=6c8991f41546
launchpad.net/bugs/cve/CVE-2020-1749
nvd.nist.gov/vuln/detail/CVE-2020-1749
security-tracker.debian.org/tracker/CVE-2020-1749
ubuntu.com/security/notices/USN-4388-1
ubuntu.com/security/notices/USN-4390-1
ubuntu.com/security/notices/USN-4391-1
www.cve.org/CVERecord?id=CVE-2020-1749
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.002 Low
EPSS
Percentile
55.1%