Ubuntu update for qtsvg-opensource-src



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2018-19869
CVE-2021-45930
CVE-2021-3481
CWE-ID CWE-119
CWE-787
CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

libqt5svg5 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU27496

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-19869

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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.

Mitigation

Update the affected package qtsvg-opensource-src to the latest version.

Vulnerable software versions

Ubuntu: 18.04

libqt5svg5 (Ubuntu package): before 5.9.5-0ubuntu1.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5241-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU78667

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-45930

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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.

Mitigation

Update the affected package qtsvg-opensource-src to the latest version.

Vulnerable software versions

Ubuntu: 18.04

libqt5svg5 (Ubuntu package): before 5.9.5-0ubuntu1.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5241-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU66866

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3481

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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.

Mitigation

Update the affected package qtsvg-opensource-src to the latest version.

Vulnerable software versions

Ubuntu: 18.04

libqt5svg5 (Ubuntu package): before 5.9.5-0ubuntu1.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5241-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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