Qt up to 5.11.2 QTgaFile resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Qt up to 5.11.2. Affected by this vulnerability is the function QTgaFile. The manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2018-19871. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Qt up to 5.11.2. It has been rated as problematic. This issue affects the function QTgaFile. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

An issue was discovered in Qt before 5.11.3. There is QTgaFile Uncontrolled Resource Consumption.

The bug was discovered 12/04/2018. The weakness was disclosed 12/26/2018 (Website). It is possible to read the advisory at blog.qt.io. The identification of this vulnerability is CVE-2018-19871 since 12/05/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 22 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121444 (Fedora 29 : mingw-python-qt5 / mingw-qt5-qt3d / mingw-qt5-qtactiveqt / etc (2019-3c45bd2cc3)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176899 (Debian Security Update for qt4-x11 (DLA 1786-1)).

Upgrading to version 5.11.3 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121444). The entries VDB-128436, VDB-128445, VDB-128446 and VDB-128448 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121444
Nessus Name: Fedora 29 : mingw-python-qt5 / mingw-qt5-qt3d / mingw-qt5-qtactiveqt / etc (2019-3c45bd2cc3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Qt 5.11.3

Timelineinfo

12/04/2018 🔍
12/05/2018 +1 days 🔍
12/26/2018 +21 days 🔍
12/26/2018 +0 days 🔍
12/27/2018 +1 days 🔍
01/30/2019 +34 days 🔍
01/30/2019 +0 days 🔍
06/22/2023 +1604 days 🔍

Sourcesinfo

Advisory: FEDORA-2019-3c45bd2cc3
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-19871 (🔍)
GCVE (CVE): GCVE-0-2018-19871
GCVE (VulDB): GCVE-100-128447
See also: 🔍

Entryinfo

Created: 12/27/2018 11:08
Updated: 06/22/2023 09:25
Changes: 12/27/2018 11:08 (69), 04/24/2020 15:12 (3), 06/22/2023 09:21 (4), 06/22/2023 09:25 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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