| Name | 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.) |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qtbase-opensource-src (PTS) | jessie, jessie (lts) | 5.3.2+dfsg-4+deb8u7 | fixed |
| stretch (security) | 5.7.1+dfsg-3+deb9u3 | fixed | |
| stretch (lts), stretch | 5.7.1+dfsg-3+deb9u5 | fixed | |
| buster, buster (lts) | 5.11.3+dfsg1-1+deb10u7 | fixed | |
| buster (security) | 5.11.3+dfsg1-1+deb10u6 | fixed | |
| bullseye | 5.15.2+dfsg-9+deb11u1 | fixed | |
| bookworm | 5.15.8+dfsg-11+deb12u2 | fixed | |
| sid, trixie | 5.15.15+dfsg-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qtbase-opensource-src | source | jessie | (not affected) | |||
| qtbase-opensource-src | source | stretch | (not affected) | |||
| qtbase-opensource-src | source | buster | (not affected) | |||
| qtbase-opensource-src | source | (unstable) | 5.14.2+dfsg-6 |
[buster] - qtbase-opensource-src <not-affected> (Only affects 5.12.2 and later)
[stretch] - qtbase-opensource-src <not-affected> (Only affects 5.12.2 and later)
[jessie] - qtbase-opensource-src <not-affected> (Only affects 5.12.2 and later)
https://bugreports.qt.io/browse/QTBUG-83450
https://github.com/mumble-voip/mumble/issues/3679
https://github.com/mumble-voip/mumble/pull/4032