drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in pcsc-lite
Name: |
Ausführen von Code mit höheren Privilegien in pcsc-lite |
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ID: |
201702-01 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mi, 1. Februar 2017, 07:25 |
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Referenzen: |
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10109 |
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Applikationen: |
pcsc-lite |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --sQp5IoOMtkt86H94Xo8G6TLa9tOcQMXMn Content-Type: multipart/mixed; boundary="PFoG99t6H8EQBERaoobUBlxxHObjkia7O" From: Aaron Bauman <bman@gentoo.org> To: gentoo-announce@lists.gentoo.org Message-ID: <5766b907-e604-c4c2-5da8-7ac95875c71a@gentoo.org> Subject: [ GLSA 201702-01 ] PCSC-Lite: Multiple vulnerabilities
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201702-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: PCSC-Lite: Multiple vulnerabilities Date: February 01, 2017 Bugs: #604574 ID: 201702-01
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Synopsis ========
Multiple vulnerabilities have been found in PCSC-Lite, the worst of which could lead to privilege escalation.
Background ==========
PCSC-Lite is a middleware to access a smart card using the SCard API (PC/SC).
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/pcsc-lite < 1.8.20 >= 1.8.20
Description ===========
The SCardReleaseContext function normally releases resources associated with the given handle (including "cardsList") and clients should cease using this handle. However, a malicious client can make the daemon invoke SCardReleaseContext and continue issuing other commands that use "cardsList", resulting in a use-after-free. When SCardReleaseContext is invoked multiple times it additionally results in a double-free of "cardsList".
Impact ======
A local attacker could use a malicious client to connect to pcscd's Unix socket, possibly resulting in a Denial of Service condition or privilege escalation since the daemon is running as root.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All PCSC-Lite users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/pcsc-lite-1.8.20"
References ==========
[ 1 ] CVE-2016-10109 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10109
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201702-01
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 2017 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.
http://creativecommons.org/licenses/by-sa/2.5
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