What’s Vulnerable › Vulnerabilities

CVE-2015-1843

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-04-06 · updated 2026-06-17
• Weakness: CWE-20

Description

The Red Hat docker package before 1.5.0-28, when using the --add-registry option, falls back to HTTP when the HTTPS connection to the registry fails, which allows man-in-the-middle attackers to conduct downgrade attacks and obtain authentication and image data by leveraging a network position between the client and the registry to block HTTPS traffic. NOTE: this vulnerability exists because of a CVE-2014-5277 regression.

Affected products

• RedHat Docker: through 1.5.0-27

References

• http://rhn.redhat.com/errata/RHSA-2015-0776.html
• http://www.securityfocus.com/bid/73936
• https://bugzilla.redhat.com/show_bug.cgi?id=1206443
• http://rhn.redhat.com/errata/RHSA-2015-0776.html
• http://www.securityfocus.com/bid/73936
• https://bugzilla.redhat.com/show_bug.cgi?id=1206443

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