Description
In ZeroMQ libzmq before 4.0.9, 4.1.x before 4.1.7, and 4.2.x before 4.3.2, a remote, unauthenticated client connecting to a libzmq application, running with a socket listening with CURVE encryption/authentication enabled, may cause a stack overflow and overwrite the stack with arbitrary data, due to a buffer overflow in the library. Users running public servers with the above configuration are highly encouraged to upgrade as soon as possible, as there are no known mitigations.
Metrics
CVSS 3.1 9.8/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00033.htmlBroken Link
- http://www.openwall.com/lists/oss-security/2019/07/08/6Mailing List, Release Notes, Third Party Advisory
- http://www.securityfocus.com/bid/109284Broken Link, Third Party Advisory, VDB Entry
- https://fangpenlin.com/posts/2024/04/07/how-i-discovered-a-9-point-8-critical-security-vulnerability-in-zeromq-with-mostly-pure-luck/
- https://github.com/zeromq/libzmq/issues/3558Third Party Advisory
- https://github.com/zeromq/libzmq/releasesRelease Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00007.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVCTNUEOFFZUNJOXFCYCF3C6Y6NDILI3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MK7SJYDJ7MMRRRPCUN3SCSE7YK6ZSHVS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6HINI24SL7CU6XIJWUOSGTZWEFOOL7X/
- https://news.ycombinator.com/item?id=39970716
- https://seclists.org/bugtraq/2019/Jul/13Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201908-17Third Party Advisory
- https://usn.ubuntu.com/4050-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4477Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00033.htmlBroken Link
- http://www.openwall.com/lists/oss-security/2019/07/08/6Mailing List, Release Notes, Third Party Advisory
- http://www.securityfocus.com/bid/109284Broken Link, Third Party Advisory, VDB Entry
- https://fangpenlin.com/posts/2024/04/07/how-i-discovered-a-9-point-8-critical-security-vulnerability-in-zeromq-with-mostly-pure-luck/
- https://github.com/zeromq/libzmq/issues/3558Third Party Advisory
- https://github.com/zeromq/libzmq/releasesRelease Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00007.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVCTNUEOFFZUNJOXFCYCF3C6Y6NDILI3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MK7SJYDJ7MMRRRPCUN3SCSE7YK6ZSHVS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T6HINI24SL7CU6XIJWUOSGTZWEFOOL7X/
- https://news.ycombinator.com/item?id=39970716
- https://seclists.org/bugtraq/2019/Jul/13Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201908-17Third Party Advisory
- https://usn.ubuntu.com/4050-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4477Third Party Advisory
Timeline
- Published
- Jul 10, 2019
- Last modified
- Jun 17, 2026
- NVD status
- Modified