CVE-2020-13962

EUVD-2020-6136
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.)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
Affected Products (NVD)
VendorProductVersion
mumblemumble
1.3.0
qtqt
5.12.2 ≤
𝑥
< 5.12.9
qtqt
5.13.0 ≤
𝑥
≤ 5.13.2
qtqt
5.14.0 ≤
𝑥
≤ 5.14.2
opensuseleap
15.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qtbase-opensource-src
bookworm
5.15.8+dfsg-11+deb12u2
fixed
bullseye
5.15.2+dfsg-9+deb11u1
fixed
buster
not-affected
jessie
not-affected
sid
5.15.15+dfsg-2
fixed
stretch
not-affected
trixie
5.15.15+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qtbase-opensource-src
bionic
not-affected
eoan
ignored
focal
needed
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
not-affected