Qt 4.8.5 QXmlSimpleReader XML File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Qt 4.8.5. Affected by this vulnerability is an unknown functionality of the component QXmlSimpleReader. Performing a manipulation as part of XML File results in memory corruption. This vulnerability is identified as CVE-2016-10040. The attack can be initiated remotely. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Qt 4.8.5. This affects an unknown functionality of the component QXmlSimpleReader. The manipulation as part of a XML File leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack-based buffer overflow in QXmlSimpleReader in Qt 4.8.5 allows remote attackers to cause a denial of service (application crash) via a xml file with multiple nested open tags.

The bug was discovered 12/24/2016. The weakness was released 03/07/2017 by Solar Designer (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2016-10040 since 12/24/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 73 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110425 (Fedora 27 : qt3 (2018-0a0da2f3b7)), 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 171272 (SUSE Enterprise Linux Security Update for libqt4 (SUSE-SU-2018:1902-1)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110425) and SecurityFocus (BID 95113†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110425
Nessus Name: Fedora 27 : qt3 (2018-0a0da2f3b7)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

12/24/2016 🔍
12/24/2016 +0 days 🔍
12/24/2016 +0 days 🔍
03/07/2017 +73 days 🔍
03/07/2017 +0 days 🔍
03/07/2017 +0 days 🔍
06/09/2018 +459 days 🔍
06/11/2018 +2 days 🔍
09/04/2020 +816 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Solar Designer
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10040 (🔍)
GCVE (CVE): GCVE-0-2016-10040
GCVE (VulDB): GCVE-100-97581
SecurityFocus: 95113 - Qt QXmlSimpleReader CVE-2016-10040 Stack Buffer Overflow Vulnerability
OSVDB: - CVE-2016-10040 - Qt - Buffer Overflow Issue Issue

Entryinfo

Created: 03/07/2017 21:52
Updated: 09/04/2020 12:02
Changes: 03/07/2017 21:52 (77), 09/04/2020 12:02 (3)
Complete: 🔍
Cache ID: 216:DF5:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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