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55 lines
2.0 KiB
55 lines
2.0 KiB
<?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="202101-21">
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<title>Flatpak: Sandbox escape</title>
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<synopsis>A vulnerability was discovered in Flatpak which could allow a
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remote attacker to execute arbitrary code.
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</synopsis>
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<product type="ebuild">flatpak</product>
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<announced>2021-01-25</announced>
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<revised count="1">2021-01-25</revised>
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<bug>765457</bug>
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<access>remote</access>
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<affected>
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<package name="sys-apps/flatpak" auto="yes" arch="*">
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<unaffected range="ge">1.10.0</unaffected>
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<vulnerable range="lt">1.10.0</vulnerable>
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</package>
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</affected>
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<background>
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<p>Flatpak is a Linux application sandboxing and distribution framework.</p>
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</background>
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<description>
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<p>A bug was discovered in the flatpak-portal service that can allow
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sandboxed applications to execute arbitrary code on the host system (a
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sandbox escape).
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could entice a user to open a specially crafted
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Flatpak app possibly resulting in execution of arbitrary code with the
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privileges of the process or a Denial of Service condition.
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</p>
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</impact>
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<workaround>
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<p>As a workaround, this vulnerability can be mitigated by preventing the
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flatpak-portal service from starting, but that mitigation will prevent
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many Flatpak apps from working correctly. It is highly recommended to
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upgrade.
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</p>
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</workaround>
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<resolution>
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<p>All Flatpak 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/flatpak-1.10.0"
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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-2021-21261">CVE-2021-21261</uri>
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</references>
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<metadata tag="requester" timestamp="2021-01-22T00:26:55Z">sam_c</metadata>
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<metadata tag="submitter" timestamp="2021-01-25T00:07:24Z">b-man</metadata>
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</glsa>
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