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55 lines
1.9 KiB
55 lines
1.9 KiB
3 years ago
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="202105-03">
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<title>GPT fdisk: Integer underflow</title>
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<synopsis>An integer underflow in sgdisk from GPT fdisk package might allow
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local attacker(s) to escalate privileges.
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</synopsis>
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<product type="ebuild">gptfdisk</product>
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<announced>2021-05-26</announced>
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<revised count="1">2021-05-26</revised>
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<bug>768762</bug>
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<access>local</access>
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<affected>
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<package name="sys-apps/gptfdisk" auto="yes" arch="*">
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<unaffected range="ge">1.0.6</unaffected>
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<vulnerable range="lt">1.0.6</vulnerable>
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</package>
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</affected>
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<background>
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<p>GPT fdisk (consisting of the gdisk, cgdisk, sgdisk, and fixparts
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programs) is a set of text-mode partitioning tools for Linux, FreeBSD,
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Mac OS X, and Windows.
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</p>
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</background>
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<description>
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<p>It was discovered that ReadLogicalParts() function in basicmbr.cc was
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missing a bounds check.
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</p>
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</description>
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<impact type="normal">
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<p>A local attacker could entice a user to insert a malicious formatted
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block device (USB stick or SD card for example), that, when processed
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with sgdisk, possibly resulting in local escalation of privileges or a
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Denial of Service condition.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All GPT fdisk users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-apps/gptfdisk-1.0.6"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-0308">CVE-2021-0308</uri>
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</references>
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<metadata tag="requester" timestamp="2021-05-25T22:34:12Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2021-05-26T07:45:07Z">whissi</metadata>
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</glsa>
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