Vulnerability-Lookup

CNVD-2020-03049

Vulnerability from cnvd - Published: 2020-01-21

Title

Qt qtbase缓冲区溢出漏洞

Description

Qt是一个1991年由Qt Company开发的跨平台C++图形用户界面应用程序开发框架。 Qt qtbase中的qtextengine.cpp文件的‘generateDirectionalRuns()’函数存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

Severity

中

Patch Name

Qt qtbase缓冲区溢出漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://code.qt.io

Reference

https://codereview.qt-project.org/c/qt/qtbase/+/271889 https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784 https://www.debian.org/security/2019/dsa-4556 https://www.auscert.org.au/bulletins/ESB-2019.4054/

Impacted products

Name
['Qt qtbase >=5.11.0，<=5.11.3', 'Qt qtbase >=5.12.0，<5.12.5']

Show details on source website

JSON

To clipboard

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CVE-2019-18281 (GCVE-0-2019-18281)

Vulnerability from cvelistv5 – Published: 2019-10-23 14:03 – Updated: 2024-08-05 01:47

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://bugreports.qt.io/browse/QTBUG-77819	x_refsource_MISC
https://codereview.qt-project.org/c/qt/qtbase/+/271889	x_refsource_MISC
https://bugs.launchpad.net/ubuntu/+source/qtbase-…	x_refsource_MISC
https://www.debian.org/security/2019/dsa-4556	vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Nov/4	mailing-listx_refsource_BUGTRAQ
https://usn.ubuntu.com/4275-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202003-60	vendor-advisoryx_refsource_GENTOO

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.