CVE-2015-1843
The Red Hat docker package before 1.5.0-28, when using the --add-registry option, falls back to...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2015-1843- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2015-1843- Updated
- 2026-11-02
EUVDEUVD-2015-1954 No score
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.
- Record
EUVD-2015-1954- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m568-g4fp-65j5 No score
The Red Hat docker package before 1.5.0-28, when using the --add-registry option, falls back to...
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.
- Record
GHSA-m568-g4fp-65j5- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
atomicRed Hat:rhel_extras_other:7 |
before 0:0-0.9.git4ff7dbd.el7 | 0:0-0.9.git4ff7dbd.el7 |
dockerRed Hat:rhel_extras_other:7 |
before 0:1.5.0-28.el7 | 0:1.5.0-28.el7 |
docker-logrotateRed Hat:rhel_extras_other:7 |
before 0:1.5.0-28.el7 | 0:1.5.0-28.el7 |
docker-pythonRed Hat:rhel_extras_other:7 |
before 0:1.0.0-22.el7 | 0:1.0.0-22.el7 |
python-websocket-clientRed Hat:rhel_extras_other:7 |
before 0:0.14.1-65.el7 | 0:0.14.1-65.el7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-1843 is a medium vulnerability (CVSS 4.3) in Redhat Docker, published April 6, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.62%, the 76th percentile. Fixed in atomic 0:0-0.9.git4ff7dbd.el7.