CVE-2019-0223
This means that an undetected man in the middle attack could be constructed if an attacker can arrange to intercept TLS traffic.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 6.23% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apache/qpid · redhat/jboss amq clients 2 · redhat/openstack · redhat/satellite · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- security@apache.org
EPSS 6.2% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2019/04/23/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108044Broken Link
- https://access.redhat.com/errata/RHSA-2019:0886Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1398Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1399Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1400Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2777Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2778Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2779Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2780Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2781Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2782Third Party Advisory
- https://issues.apache.org/jira/browse/PROTON-2014?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanelIssue Tracking, Vendor Advisory
- https://lists.apache.org/thread.html/008ee5e78e5a090e1fcc5f6617f425e4e51d59f03d3eda2dd006df9f%40%3Cusers.qpid.apache.org%3E
- https://lists.apache.org/thread.html/3adb2f020f705b4fd453982992a68cd10f9d5ac728b699efdb73c1f5%40%3Cdev.qpid.apache.org%3E
- https://lists.apache.org/thread.html/49c83f0acce5ceaeffca51714ec2ba0f0199bcb8f99167181bba441b%40%3Cdev.qpid.apache.org%3E
- https://lists.apache.org/thread.html/914424e4d798a340f523b6169aaf39b626971d9bb00fcdeb1d5d6c0d%40%3Ccommits.qpid.apache.org%3E
- https://lists.apache.org/thread.html/d9c9a882a292e2defaed1f954528c916fb64497ce57db652727e39b0%40%3Cannounce.apache.org%3E
- http://www.openwall.com/lists/oss-security/2019/04/23/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108044Broken Link
- https://access.redhat.com/errata/RHSA-2019:0886Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1398Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1399Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1400Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2777Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2778Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2779Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2780Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2781Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2782Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.