Vulnerabilities > CVE-2020-13962
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.)
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 | |
| Application | 36 | |
| OS | 3 | |
| OS | 1 |
References
- 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://security.gentoo.org/glsa/202007-18
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3IZY7LKJ6NAXQDFYFR4S7L5BBHYK53K/
- 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/4X6EDPIIAQPVP2CHL2CHDHJ25EECA7UE/
- https://github.com/mumble-voip/mumble/pull/4032
- https://github.com/mumble-voip/mumble/issues/3679
- https://bugreports.qt.io/browse/QTBUG-83450