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CVE-2019-11779

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Date: September 19, 2019

In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.

Language: C

Severity Score

Related Resources (18)

https://security.alpinelinux.org/vuln/CVE-2019-11779
https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
https://nvd.nist.gov/vuln/detail/CVE-2019-11779
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/
https://seclists.org/bugtraq/2019/Nov/25
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/
https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160
https://www.debian.org/security/2019/dsa-4570
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JWNVTFA2CKXERXRYPYE2YFTZP4GNBGYY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/
https://security-tracker.debian.org/tracker/CVE-2019-11779
https://usn.ubuntu.com/4137-1/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWNVTFA2CKXERXRYPYE2YFTZP4GNBGYY/
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-11779
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.html
https://www.mend.io/vulnerability-database/CVE-2019-11779

Severity Score

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

Uncontrolled Recursion

CWE-674

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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