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.)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
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
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 80%
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
bullseye
5.15.2+dfsg-9+deb11u1
fixed
buster
not-affected
stretch
not-affected
jessie
not-affected
bookworm
5.15.8+dfsg-11+deb12u2
fixed
sid
5.15.15+dfsg-2
fixed
trixie
5.15.15+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qtbase-opensource-src
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
needed
eoan
ignored
bionic
not-affected
xenial
not-affected
trusty
dne