VulnerabilityModified
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 attackers to bypass TLS protections and trigger use of cleartext for client authentication by stripping the…
MEDIUM 5.9EPSS 1.52%
Does this matter?
Lower severity and a low EPSS score (1.52%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.52% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- igniterealtime/smack · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2016/12/22/12Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/95129Third Party Advisory, VDB Entry
- https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22Vendor Advisory
- https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820bPatch, Third Party Advisory
- https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04Patch, Third Party Advisory
- https://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739Issue Tracking, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF/
- http://www.openwall.com/lists/oss-security/2016/12/22/12Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/95129Third Party Advisory, VDB Entry
- https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22Vendor Advisory
- https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820bPatch, Third Party Advisory
- https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04Patch, Third Party Advisory
- https://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739Issue Tracking, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.