CVE-2016-7075: kubernetes Improper Certificate Validation
CVSS: 8.1v3.0HighModified
AliasesRHSA-2016:2064UBUNTU-CVE-2016-7075DEBIAN-CVE-2016-7075CGA-264p-g5gw-5pr4CGA-3fv8-7566-hr7mCGA-54xr-85g7-v6c7CGA-92hp-3hc5-37f8CGA-cfhh-fc3x-gc6qCGA-h5pq-mc89-34q8CGA-j7qr-qfhc-gr5gCGA-jjgr-7m3m-296hCGA-3c63-mf48-w34fCGA-4wcc-2rjg-mw9qCGA-gc4x-v8rg-qj98CGA-m6pm-7hwp-w9x3CGA-rw97-p4pc-gvcfCGA-vvp4-hpjr-mvmwCGA-wc7w-9x9q-w9p4CGA-x458-8w3g-68mq
Published 10-09-2018Last modified 06-08-2024
Vulnerability summary
CVE-2016-7075 is a high (CVSS 8.1) Improper Certificate Validation vulnerability in kubernetes. EPSS estimates a 1.57% chance of exploitation in the next 30 days, higher than 74.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.1/10
010
High · v3.0 (NVD)EPSS score
1.57%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 0 · Related 16Timeline
- 10-09-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
It was found that Kubernetes as used by Openshift Enterprise 3 did not correctly validate X.509 client intermediate certificate host name fields. An attacker could use this flaw to bypass authentication requirements by using a specially crafted X.509 certificate.
CVSS metrics
8 scores · 7 sources · 2 versionsHigh 8.1Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HSources7 sources · 7.5–8.1
- CVE.orgCNA7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NDiffers
- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated8.1HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.57%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.57% on 18-09-2026
18-09-202618-10-2026
EPSS score1.57%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundKubernetes
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Redhat12 products
- openshift3.1 | 3.2 | 3.3
- atomic-openshift< 0:3.1.1.8-1.git.0.d469026.el7aos | < 0:3.2.1.17-1.git.0.6d01b60.el7 | < 0:3.3.0.35-1.git.0.d7bd9b6.el7
- atomic-openshift-clients< 0:3.1.1.8-1.git.0.d469026.el7aos | < 0:3.2.1.17-1.git.0.6d01b60.el7 | < 0:3.3.0.35-1.git.0.d7bd9b6.el7
- atomic-openshift-clients-redistributable< 0:3.1.1.8-1.git.0.d469026.el7aos | < 0:3.2.1.17-1.git.0.6d01b60.el7 | < 0:3.3.0.35-1.git.0.d7bd9b6.el7
- atomic-openshift-dockerregistry< 0:3.1.1.8-1.git.0.d469026.el7aos | < 0:3.2.1.17-1.git.0.6d01b60.el7 | < 0:3.3.0.35-1.git.0.d7bd9b6.el7
Chainguard8 products
- kubernetes-1.30All versions (No fix recorded)
- kubernetes-1.31All versions (No fix recorded)
- kubernetes-1.32All versions (No fix recorded)
- kubernetes-1.33All versions (No fix recorded)
- kubernetes-1.34All versions (No fix recorded)
Wolfi4 products
- kubernetes-1.34All versions (No fix recorded)
- kubernetes-1.35All versions (No fix recorded)
- kubernetes-1.36All versions (No fix recorded)
- kubernetes-1.37All versions (No fix recorded)
Debian1 product
- kubernetes< 1.5.5+dfsg-1
Kubernetes1 product
Red hat1 product
- openshiftall
Ubuntu1 product
- kubernetesAll versions (No fix recorded)
7 vendors · 28 products
References
11 links- github.com/kubernetes/kubernetes/issues/34517X Refsource CONFIRMExploitPatchThird Party AdvisoryREPORTFIX
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7075X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
- access.redhat.com/errata/RHSA-2016:2064Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory