Gentoo: GLSA-202007-38 Normal Severity: QtGui Arbitrary Code Execution
gentoo
July 26, 2020
A use-after-free was discovered in QtGui's Markdown handling code possibly allowing a remote attacker to execute arbitrary code.
Summary
QtGui's setMarkdown has a use-after-free related to QTextMarkdownImporter::insertBlock.
Resolution
All QtGui users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-qt/qtgui-5.14.2"
Note that the Qt suite is best kept in sync, so a world upgrade may be advisable to keep your system in a good state.
Note that the Qt suite is best kept in sync, so a world upgrade may be advisable to keep your system in a good state.
References
[ 1 ] CVE-2020-12267 https://nvd.nist.gov/vuln/detail/CVE-2020-12267
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202007-38
style>.gentoo_availability{display:block;}
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: Normal
Title: QtGui: Arbitrary code execution
Date: July 27, 2020
Bugs: #719732
ID: 202007-38
Background
QtGui is a module for the Qt toolkit.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-qt/qtgui < 5.14.2 >= 5.14.2
Impact
=====
A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.
Workaround
There is no known workaround at this time.
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