While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 (C library and it
While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 (C library and its language bindings) can connect to a peer anonymously using TLS *even when configured to verify the peer certificate* while used with OpenSSL versions before 1.1.0. This means that an undetected man in the middle attack could be constructed if an attacker can arrange to intercept TLS traffic.
- Published
- Apr 23, 2019
- Updated
- Jun 16, 2026
- EPSS
- 6.2% · 93th percentile
- CWE
- —
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 29 / 40 · 7.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 6.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| apache | qpid | cpe:2.3:a:apache:qpid |
| redhat | jboss amq clients 2 | cpe:2.3:a:redhat:jboss_amq_clients_2 |
| redhat | linux | cpe:2.3:o:redhat:linux |
| redhat | openstack | cpe:2.3:a:redhat:openstack |
| redhat | satellite | cpe:2.3:a:redhat:satellite |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache qpid0.9 and later · up to 0.27.0 inclusive
- redhat enterprise linux desktop6.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux eus6.7
- redhat enterprise linux eus7.2
- redhat enterprise linux eus7.3
- redhat enterprise linux eus7.4
- redhat enterprise linux eus7.5
- redhat enterprise linux eus7.6
- redhat enterprise linux server6.0
- redhat enterprise linux server7.0
- redhat enterprise linux server aus5.9
- redhat enterprise linux server aus6.4
- redhat enterprise linux server aus6.5
- redhat enterprise linux server aus6.6
- redhat enterprise linux server aus7.2
- redhat enterprise linux server aus7.3
- redhat enterprise linux server aus7.4
- redhat enterprise linux server aus7.6
- redhat enterprise linux server tus7.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.
Apache Software Foundation Apache Qpid Proton
- 0.9 to 0.27.0affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | qpid-proton | before 0.22.0-1 | 0.22.0-1 |
| Maven | org.apache.qpid:proton-j | from 0.9 · before 0.27.1 | 0.27.1 |
| Red Hat:a_mq_clients:2::el6 | python-qpid-proton | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | python-qpid-proton-docs | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-c | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-c-devel | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-c-docs | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-cpp | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-cpp-devel | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-cpp-docs | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-debuginfo | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el6 | qpid-proton-tests | before 0:0.27.0-3.el6 | 0:0.27.0-3.el6 |
| Red Hat:a_mq_clients:2::el7 | python-qpid-proton | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | python-qpid-proton-docs | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-c | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-c-devel | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-c-docs | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-cpp | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-cpp-devel | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-cpp-docs | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-debuginfo | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
| Red Hat:a_mq_clients:2::el7 | qpid-proton-tests | before 0:0.27.0-3.el7 | 0:0.27.0-3.el7 |
+96
Same product
apache: all recordsOther highest-scoring records for the same primary product.
- CVE-2015-0224qpidd in Apache Qpid 0.30 and earlier allows remote attackers to cause a denial of service (daemon crash) via a crafted protocol sequence se35Monitor
- CVE-2011-3620Apache Qpid 0.12 does not properly verify credentials during the joining of a cluster, which allows remote attackers to obtain access to the32Monitor
- CVE-2015-0203The qpidd broker in Apache Qpid 0.30 and earlier allows remote authenticated users to cause a denial of service (daemon crash) via an AMQP m29Monitor
- CVE-2012-4446The default configuration for Apache Qpid 0.20 and earlier, when the federation_tag attribute is enabled, accepts AMQP connections without c28Monitor
- CVE-2013-1909The Python client in Apache Qpid before 2.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN)23Monitor
- CVE-2012-4459Integer overflow in the qpid::framing::Buffer::checkAvailable function in Apache Qpid 0.20 and earlier allows remote attackers to cause a de23Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:qpid-proton | 0.22.0-1 · Debian:12 | Package registry (OSV) |
| Maven:org.apache.qpid:proton-j | 0.27.1 | Package registry (OSV) |
| opensuse:qpid-proton | 0.38.0-150000.6.3.1 · openSUSE:Leap 15.5 | Package registry (OSV) |
| red hat:ansible-runner | 0:1.3.4-2.el8ar · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:ansible-tower-venv-ansible | 0:3.5.2-1.el8at · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme-amazon-smartstate | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme-appliance | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme-appliance-common | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme-appliance-tools | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:cfme-gemset | 0:5.11.0.28-1.el8cf · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:ovirt-ansible-cluster-upgrade | 0:1.1.13-1.el8ev · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:ovirt-ansible-disaster-recovery | 0:1.2.0-1.el8ev · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:ovirt-ansible-engine-setup | 0:1.1.9-1.el8ev · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| red hat:ovirt-ansible-hosted-engine-setup | 0:1.0.26-1.el8ev · Red Hat:cloudforms_managementengine:5.11::el8 | Package registry (OSV) |
| suse:qpid-proton | 0.38.0-150000.6.3.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP5 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.openwall.com/lists/oss-security/2019/04/23/4
- www.securityfocus.com/bid/108044
- access.redhat.com/errata/RHSA-2019:0886
- access.redhat.com/errata/RHSA-2019:1398
- access.redhat.com/errata/RHSA-2019:1399
- access.redhat.com/errata/RHSA-2019:1400
- access.redhat.com/errata/RHSA-2019:2777
- access.redhat.com/errata/RHSA-2019:2778
- access.redhat.com/errata/RHSA-2019:2779
- access.redhat.com/errata/RHSA-2019:2780
- access.redhat.com/errata/RHSA-2019:2781
- access.redhat.com/errata/RHSA-2019:2782
- issues.apache.org/jira/browse/PROTON-2014?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel
- lists.apache.org/thread.html/008ee5e78e5a090e1fcc5f6617f425e4e51d59f03d3eda2dd006df9f%40%3Cusers.qpid.apache.org%3E
- lists.apache.org/thread.html/3adb2f020f705b4fd453982992a68cd10f9d5ac728b699efdb73c1f5%40%3Cdev.qpid.apache.org%3E
- lists.apache.org/thread.html/49c83f0acce5ceaeffca51714ec2ba0f0199bcb8f99167181bba441b%40%3Cdev.qpid.apache.org%3E
- lists.apache.org/thread.html/914424e4d798a340f523b6169aaf39b626971d9bb00fcdeb1d5d6c0d%40%3Ccommits.qpid.apache.org%3E
- lists.apache.org/thread.html/d9c9a882a292e2defaed1f954528c916fb64497ce57db652727e39b0%40%3Cannounce.apache.org%3E
Vendor advisories and official records. Exploit/PoC links are deliberately left out.