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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="202011-10">
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<title>tmux: Buffer overflow</title>
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<synopsis>A buffer overflow in tmux might allow remote attacker(s) to execute
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arbitrary code.
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</synopsis>
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<product type="ebuild">tmux</product>
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<announced>2020-11-11</announced>
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<revised count="1">2020-11-11</revised>
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<bug>753206</bug>
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<access>remote</access>
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<affected>
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<package name="app-misc/tmux" auto="yes" arch="*">
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<unaffected range="ge">3.1c</unaffected>
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<vulnerable range="lt">3.1c</vulnerable>
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</package>
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</affected>
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<background>
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<p>tmux is a terminal multiplexer.</p>
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</background>
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<description>
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<p>A flaw in tmux’s handling of escape characters was discovered which
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may allow a buffer overflow.
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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 possibly execute arbitrary code with the
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privileges of the process, or cause 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>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 tmux 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 ">=app-misc/tmux-3.1c"
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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-2020-27347">CVE-2020-27347</uri>
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</references>
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<metadata tag="requester" timestamp="2020-11-09T23:15:04Z">sam_c</metadata>
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<metadata tag="submitter" timestamp="2020-11-11T03:36:59Z">sam_c</metadata>
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</glsa>
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