drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in X.Org X Server
Name: |
Ausführen von Code mit höheren Privilegien in X.Org X Server |
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ID: |
202104-02 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Sa, 1. Mai 2021, 06:59 |
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Referenzen: |
https://nvd.nist.gov/vuln/detail/CVE-2021-3472 |
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Applikationen: |
X11 |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --AOyIBY4o9FM2RSBG8mJGIzRaji19Nmi30 Content-Type: multipart/mixed; boundary="r8BTyBM6wrCYT2O3OAB5939prkZVswfWf"; protected-headers="v1" From: Thomas Deutschmann <whissi@gentoo.org> Reply-To: security@gentoo.org To: gentoo-announce@lists.gentoo.org Message-ID: <1acc3f91-4c04-dcc2-7cae-f1cea506da61@gentoo.org> Subject: [ GLSA 202104-02 ] X.Org X Server: Privilege escalation
--r8BTyBM6wrCYT2O3OAB5939prkZVswfWf Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-U Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202104-02 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: High Title: X.Org X Server: Privilege escalation Date: April 30, 2021 Bugs: #782679 ID: 202104-02
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Synopsis ========
A vulnerability in X.Org X Server may allow users to escalate privileges.
Background ==========
The X Window System is a graphical windowing system based on a client/server model.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-base/xorg-server < 1.20.11 >= 1.20.11
Description ===========
It was discovered that X.Org X Server did not sufficiently check the length of the XInput extension's ChangeFeedbackControl request.
Impact ======
An authorized attacker could possibly escalate privileges, or cause a Denial of Service condition.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All X.Org X Server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.20.11"
References ==========
[ 1 ] CVE-2021-3472 https://nvd.nist.gov/vuln/detail/CVE-2021-3472
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202104-02
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 2021 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
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