CVE-2020-13962

Description

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.)

References

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

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00004.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3