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Sigurnosni nedostatak programske biblioteke QtGUI

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LGE

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Gentoo Linux Security Advisory GLSA 202007-38
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https://security.gentoo.org/
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Severity: Normal
Title: QtGui: Arbitrary code execution
Date: July 27, 2020
Bugs: #719732
ID: 202007-38

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Synopsis
========

A use-after-free was discovered in QtGui’s Markdown handling code
possibly allowing a remote attacker to execute arbitrary code.

Background
==========

QtGui is a module for the Qt toolkit.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-qt/qtgui < 5.14.2 >= 5.14.2

Description
===========

QtGui’s setMarkdown has a use-after-free related to
QTextMarkdownImporter::insertBlock.

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.

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.

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

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.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

<html><head><meta http-equiv=”Content-Type” content=”text/html; charset=us-ascii”></head><body style=”word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;” class=””><pre style=”word-wrap: break-word; white-space: pre-wrap;” class=””>- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 202007-38
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
<a href=”https://security.gentoo.org/” class=””>https://security.gentoo.org/</a>
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: Normal
Title: QtGui: Arbitrary code execution
Date: July 27, 2020
Bugs: #719732
ID: 202007-38

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

A use-after-free was discovered in QtGui’s Markdown handling code
possibly allowing a remote attacker to execute arbitrary code.

Background
==========

QtGui is a module for the Qt toolkit.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-qt/qtgui < 5.14.2 >= 5.14.2

Description
===========

QtGui’s setMarkdown has a use-after-free related to
QTextMarkdownImporter::insertBlock.

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.

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.

References
==========

[ 1 ] CVE-2020-12267
<a href=”https://nvd.nist.gov/vuln/detail/CVE-2020-12267″ class=””>https://nvd.nist.gov/vuln/detail/CVE-2020-12267</a>

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

<a href=”https://security.gentoo.org/glsa/202007-38″ class=””>https://security.gentoo.org/glsa/202007-38</a>

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
<a href=”mailto:security@gentoo.org” class=””>security@gentoo.org</a> or alternatively, you may file a bug at
<a href=”https://bugs.gentoo.org” class=””>https://bugs.gentoo.org</a>.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons – Attribution / Share Alike license.

<a href=”https://creativecommons.org/licenses/by-sa/2.5″ class=””>https://creativecommons.org/licenses/by-sa/2.5</a></pre><div class=””><br class=””></div></body></html>—–BEGIN PGP SIGNATURE—–

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AutorFilip Omazic
Cert idNCERT-REF-2020-07-0001-ADV
CveCERT-CVE-DUMMY
ID izvornikaCERT-ORIGID-DUMMY
ProizvodCERT-DUMMY-PRODUCT
IzvorAdobe
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