CVE-2019-18281

An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 81%
VendorProductVersion
qtqtbase
5.11.0 ≤
𝑥
≤ 5.11.3
qtqtbase
5.12.0 ≤
𝑥
< 5.12.5
debiandebian_linux
9.0
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qtbase-opensource-src
bullseye
5.15.2+dfsg-9+deb11u1
fixed
buster
no-dsa
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
qtbase-opensource-src-gles
bullseye
5.15.2+dfsg-4
fixed
buster
no-dsa
stretch
not-affected
jessie
not-affected
bookworm
5.15.8+dfsg-3
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
eoan
Fixed 5.12.4+dfsg-4ubuntu1.1
released
disco
ignored
bionic
not-affected
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
https://bugreports.qt.io/browse/QTBUG-77819
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
https://codereview.qt-project.org/c/qt/qtbase/+/271889
https://seclists.org/bugtraq/2019/Nov/4
https://security.gentoo.org/glsa/202003-60
https://usn.ubuntu.com/4275-1/
https://www.debian.org/security/2019/dsa-4556
https://bugreports.qt.io/browse/QTBUG-77819
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
https://codereview.qt-project.org/c/qt/qtbase/+/271889
https://seclists.org/bugtraq/2019/Nov/4
https://security.gentoo.org/glsa/202003-60
https://usn.ubuntu.com/4275-1/
https://www.debian.org/security/2019/dsa-4556