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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="201701-11">
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<title>musl: Integer overflow</title>
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<synopsis>An integer overflow in musl might allow an attacker to execute
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arbitrary code.
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</synopsis>
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<product type="ebuild">musl</product>
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<announced>2017-01-02</announced>
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<revised count="1">2017-01-02</revised>
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<bug>597498</bug>
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<access>local, remote</access>
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<affected>
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<package name="sys-libs/musl" auto="yes" arch="*">
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<unaffected range="ge">1.1.15-r2</unaffected>
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<vulnerable range="lt">1.1.15-r2</vulnerable>
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</package>
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</affected>
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<background>
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<p>musl is a “libc”, an implementation of the standard library
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functionality described in the ISO C and POSIX standards, plus common
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extensions, intended for use on Linux-based systems.
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</p>
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</background>
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<description>
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<p>A vulnerability was discovered in musl’s tre_tnfa_run_parallel
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function buffer overflow logic, due to the incorrect use of integer types
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and missing overflow checks.
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</p>
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</description>
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<impact type="normal">
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<p>An attacker, who controls the regular expression and/or string being
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searched, could execute arbitrary code with the privileges of the
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process.
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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 musl 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-libs/musl-1.1.15-r2"
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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/nvd.cfm?cvename=CVE-2016-8859">CVE-2016-8859</uri>
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</references>
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<metadata tag="requester" timestamp="2017-01-02T07:23:08Z">b-man</metadata>
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<metadata tag="submitter" timestamp="2017-01-02T14:34:33Z">b-man</metadata>
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</glsa>
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