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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201701-11">
<title>musl: Integer overflow</title>
<synopsis>An integer overflow in musl might allow an attacker to execute
arbitrary code.
</synopsis>
<product type="ebuild">musl</product>
<announced>2017-01-02</announced>
<revised count="1">2017-01-02</revised>
<bug>597498</bug>
<access>local, remote</access>
<affected>
<package name="sys-libs/musl" auto="yes" arch="*">
<unaffected range="ge">1.1.15-r2</unaffected>
<vulnerable range="lt">1.1.15-r2</vulnerable>
</package>
</affected>
<background>
<p>musl is a “libc”, an implementation of the standard library
functionality described in the ISO C and POSIX standards, plus common
extensions, intended for use on Linux-based systems.
</p>
</background>
<description>
<p>A vulnerability was discovered in musl’s tre_tnfa_run_parallel
function buffer overflow logic, due to the incorrect use of integer types
and missing overflow checks.
</p>
</description>
<impact type="normal">
<p>An attacker, who controls the regular expression and/or string being
searched, could execute arbitrary code with the privileges of the
process.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All musl users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/musl-1.1.15-r2"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-8859">CVE-2016-8859</uri>
</references>
<metadata tag="requester" timestamp="2017-01-02T07:23:08Z">b-man</metadata>
<metadata tag="submitter" timestamp="2017-01-02T14:34:33Z">b-man</metadata>
</glsa>
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