CVE-2020-14039
published 2020-07-17CVE-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…
PriorityP427medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
1.76%
75.3th percentile
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.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | golang-1.15 | — | — |
| golang | go | < 1.13.13 | 1.13.13 |
| golang | go | >= 1.14.0 < 1.14.5 | 1.14.5 |
| msrc | azl3_golang_1.23.9-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_golang_1.24.3-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-tensorboard_2.11.0-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_python-tensorboard_2.16.2-2_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_golang_1.15.13-1_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
vendor_debian5.3LOW
vendor_msrc5.3MEDIUM
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Microsoft
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)
vendor_msrc·2020-07-14·CVSS 5.3
CVE-2020-14039 [MEDIUM] CWE-295 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)
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to a
Debian
CVE-2020-14039: golang-1.15 - In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a che...
vendor_debian·2020·CVSS 5.3
CVE-2020-14039 [MEDIUM] CVE-2020-14039: golang-1.15 - In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a che...
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.
Scope: local
bullseye: resolved
GHSA
GHSA-v8jf-78w9-hp93: In Go before 1
ghsa_unreviewed·2022-05-24
CVE-2020-14039 [MEDIUM] CWE-295 GHSA-v8jf-78w9-hp93: In Go before 1
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.
OSV
Certificate verification error on Windows in crypto/x509
osv·2022-02-17
CVE-2020-14039 Certificate verification error on Windows in crypto/x509
Certificate verification error on Windows in crypto/x509
On Windows, if VerifyOptions.Roots is nil, Certificate.Verify does not check the EKU requirements specified in VerifyOptions.KeyUsages. This may allow a certificate to be used for an unintended purpose.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.htmlhttps://groups.google.com/forum/#%21forum/golang-announcehttps://groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2whttps://security.netapp.com/advisory/ntap-20200731-0005/https://www.oracle.com/security-alerts/cpuApr2021.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.htmlhttps://groups.google.com/forum/#%21forum/golang-announcehttps://groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2whttps://security.netapp.com/advisory/ntap-20200731-0005/https://www.oracle.com/security-alerts/cpuApr2021.html
2020-07-17
Published