drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in GPT fdisk
Name: |
Ausführen von Code mit höheren Privilegien in GPT fdisk |
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ID: |
202105-03 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mi, 26. Mai 2021, 23:00 |
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Referenzen: |
https://nvd.nist.gov/vuln/detail/CVE-2021-0308 |
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Applikationen: |
GPT fdisk |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --uK1Iz75suntZiTlqLs6g5oDy2UMWnfhY6 Content-Type: multipart/mixed; boundary="ruQdJs76zX70qTiCTbJmHEyKdeVpiYqyB"; protected-headers="v1" From: Thomas Deutschmann <whissi@gentoo.org> Reply-To: security@gentoo.org To: gentoo-announce@lists.gentoo.org Message-ID: <f2e41cb9-1bf8-73d1-ac2a-ace577c1371a@gentoo.org> Subject: [ GLSA 202105-03 ] GPT fdisk: Integer underflow
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202105-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: GPT fdisk: Integer underflow Date: May 26, 2021 Bugs: #768762 ID: 202105-03
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Synopsis ========
An integer underflow in sgdisk from GPT fdisk package might allow local attacker(s) to escalate privileges.
Background ==========
GPT fdisk (consisting of the gdisk, cgdisk, sgdisk, and fixparts programs) is a set of text-mode partitioning tools for Linux, FreeBSD, Mac OS X, and Windows.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/gptfdisk < 1.0.6 >= 1.0.6
Description ===========
It was discovered that ReadLogicalParts() function in basicmbr.cc was missing a bounds check.
Impact ======
A local attacker could entice a user to insert a malicious formatted block device (USB stick or SD card for example), that, when processed with sgdisk, possibly resulting in local escalation of privileges or a Denial of Service condition.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All GPT fdisk users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/gptfdisk-1.0.6"
References ==========
[ 1 ] CVE-2021-0308 https://nvd.nist.gov/vuln/detail/CVE-2021-0308
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202105-03
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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