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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202401-18">
<title>zlib: Buffer Overflow</title>
<synopsis>A vulnerability has been found in zlib that can lead to a heap-based buffer overflow.</synopsis>
<product type="ebuild">zlib</product>
<announced>2024-01-15</announced>
<revised count="1">2024-01-15</revised>
<bug>916484</bug>
<access>remote</access>
<affected>
<package name="sys-libs/zlib" auto="yes" arch="*">
<unaffected range="ge">1.2.13-r2</unaffected>
<vulnerable range="lt">1.2.13-r2</vulnerable>
</package>
</affected>
<background>
<p>zlib is a widely used free and patent unencumbered data compression library.</p>
</background>
<description>
<p>A vulnerability has been discovered in zlib. Please review the CVE identifier referenced below for details.</p>
</description>
<impact type="high">
<p>MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in ZipOpenNewFileInZip4_64 via a long filename, comment, or extra field.</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All zlib users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/zlib-1.2.13-r2"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2023-45853">CVE-2023-45853</uri>
</references>
<metadata tag="requester" timestamp="2024-01-15T12:02:56.466413Z">graaff</metadata>
<metadata tag="submitter" timestamp="2024-01-15T12:02:56.468710Z">graaff</metadata>
</glsa>
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