Vulnerability Report

CVE-2020-13962

Title: Mumble Denial of Service (DoS)

Denial of Service (DoS)

Proof Of Concept

No public PoC currently indexed for CVE-2020-13962.

CWE Category NVD-CWE-noinfo
Published Date Jun 09, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
1.57%

Vulnerability Summary

CVE-2020-13962: Qt 5.12.2 through 5.14.2, as used in unofficial builds of Mumble 1.3.0 and other products, mishandles OpenSSL's error queue, which can cause a denial of service to QSslSocket users. Because errors leak in unrelated TLS sessions, an unrelated session may be disconnected when any handshake fails. (Mumble 1.3.1 is not affected, regardless of the Qt version.)

Impacted Vendors

T
trolltech 1
Q
qt 1
M
mumble 1
L
light_speed_gaming 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00004.html https://bugreports.qt.io/browse/QTBUG-83450 https://github.com/mumble-voip/mumble/issues/3679 https://github.com/mumble-voip/mumble/pull/4032 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X6EDPIIAQPVP2CHL2CHDHJ25EECA7UE/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQJDBZUYMMF4R5QQKD2HTIKQU2NSKO63/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3IZY7LKJ6NAXQDFYFR4S7L5BBHYK53K/ https://security.gentoo.org/glsa/202007-18 http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00004.html https://bugreports.qt.io/browse/QTBUG-83450 https://github.com/mumble-voip/mumble/issues/3679 https://github.com/mumble-voip/mumble/pull/4032 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X6EDPIIAQPVP2CHL2CHDHJ25EECA7UE/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQJDBZUYMMF4R5QQKD2HTIKQU2NSKO63/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3IZY7LKJ6NAXQDFYFR4S7L5BBHYK53K/ https://security.gentoo.org/glsa/202007-18
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-13962 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.