CVE-2019-18281
Published: 23 October 2019
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qtbase-opensource-src Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Released
(5.12.4+dfsg-4ubuntu1.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.12.5+dfsg-2)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://code.qt.io/cgit/qt/qtbase.git/commit/src/gui/text/qtextengine.cpp?h=5.12&id=1232205e32464d90e871f39eb1e14fcf9b78a163 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.3 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |