GitHub Advisoryadvisory · Maven
GHSA-66pq-hqv5-228g Smack allows the bypass of TLS protections
MEDIUM
Official page ↗
- Aliases
- CVE-2016-10027
- Ecosystem
- Maven
- Packages
- org.igniterealtime.smack:smack-core
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-362
- Reviewed
- 2025-04-21
Affected packages
• Maven org.igniterealtime.smack:smack-core: < 4.1.9 → fixed in 4.1.9
Description
Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle attackers to bypass TLS protections and trigger use of cleartext for client authentication by stripping the "starttls" feature from a server response.
Related
Alias · CVE (1)
- CVE-2016-10027 Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle… vulnerability
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-10027 advisory
- https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820b web
- https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04 web
- https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22 web
- https://github.com/igniterealtime/Smack package
- https://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739 web
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF web
- https://lists.fedoraproject.org/archives/list/[email protected]/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF web
- http://www.openwall.com/lists/oss-security/2016/12/22/12 web