SB2022011960 - Ubuntu update for qtsvg-opensource-src
Published: January 19, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2018-19869)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing SVG images within the qsvghandler.cpp file in Qt. A remote attacker can create a specially crafted image, pass it to he application that uses Qt library for SVG processing, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Out-of-bounds write (CVE-ID: CVE-2021-45930)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing untrusted input within QtPrivate::QCommonArrayOps::growAppend() function. A remote attacker can create a specially crafted SVG file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.
3) Out-of-bounds read (CVE-ID: CVE-2021-3481)
The vulnerability allows a remote attacker to gain access to potentially sensitive information or crash the application.
The vulnerability exists due to a boundary condition within the QRadialFetchSimd in qt/qtbase/src/gui/painting/qdrawhelper_p.h in Qt/Qtbase when rendering and displaying a crafted Scalable Vector Graphics (SVG) file. A remote attacker can create a specially crafted SVG file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or crash the application.
Remediation
Install update from vendor's website.