Medium severity · published Oct 23, 2019
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…
4.3
CVSS
2.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
QT
Qtbase · QT
5.11.0 through 5.11.3; 5.12.0 before 5.12.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18281
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-18281
Permissions Required
https://bugreports.qt.io/browse/QTBUG-77819
Issue Tracking
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
Patch
https://codereview.qt-project.org/c/qt/qtbase/+/271889
Mailing List
https://seclists.org/bugtraq/2019/Nov/4
security.gentoo.org
https://security.gentoo.org/glsa/202003-60
usn.ubuntu.com
https://usn.ubuntu.com/4275-1/
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