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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202208-13">
<title>libass: Denial of service</title>
<synopsis>A vulnerability in libass could result in denial of service.</synopsis>
<product type="ebuild">libass</product>
<announced>2022-08-10</announced>
<revised count="1">2022-08-10</revised>
<bug>803119</bug>
<access>remote</access>
<affected>
<package name="media-libs/libass" auto="yes" arch="*">
<unaffected range="ge">0.15.1</unaffected>
<vulnerable range="lt">0.15.1</vulnerable>
</package>
</affected>
<background>
<p>libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.</p>
</background>
<description>
<p>A one-byte buffer overwrite in ASS font decoding could trigger an assertion failure resulting in denial of service.</p>
</description>
<impact type="low">
<p>An attacker with control over the ASS track input to libass via an application using it could trigger a denial of service.</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All libass users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libass-0.15.1"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-36430">CVE-2020-36430</uri>
</references>
<metadata tag="requester" timestamp="2022-08-10T04:08:39.534267Z">ajak</metadata>
<metadata tag="submitter" timestamp="2022-08-10T04:08:39.537350Z">ajak</metadata>
</glsa>
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