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Medium severity · published Jul 17, 2020
CVE-2020-14039
In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements (if VerifyOptions.Roots equals nil and the…
5.3
CVSS
1.8%
EPSS
No
On KEV
Description
In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements (if VerifyOptions.Roots equals nil and the installation is on Windows). Thus, X.509 certificate verification is incomplete.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GO
GO · Golang
before 1.13.13; 1.14.0 before 1.14.5 · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
Affected product
GO
GO
Golang
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14039
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14039
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.html
groups.google.com
https://groups.google.com/forum/#%21forum/golang-announce
groups.google.com
https://groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2w
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