42 lines
1.7 KiB
XML
42 lines
1.7 KiB
XML
<?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="202208-21">
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<title>libebml: Heap buffer overflow vulnerability</title>
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<synopsis>A heap-based buffer overflow in libeml might allow attackers to execute arbitrary code.</synopsis>
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<product type="ebuild">libebml</product>
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<announced>2022-08-14</announced>
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<revised count="1">2022-08-14</revised>
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<bug>772272</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/libebml" auto="yes" arch="arm ppc sparc x86">
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<unaffected range="ge">1.4.2</unaffected>
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<vulnerable range="lt">1.4.2</vulnerable>
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</package>
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</affected>
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<background>
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<p>libebml is a C++ library to parse EBML files.</p>
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</background>
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<description>
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<p>On 32bit builds of libebml, the length of a string is miscalculated, potentially leading to an exploitable heap overflow.</p>
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</description>
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<impact type="high">
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<p>An attacker able to provide arbitrary input to libebml could achieve arbitrary code execution.</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>Users of libebml on 32 bit architectures 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 ">=dev-libs/libebml-1.4.2"
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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-2021-3405">CVE-2021-3405</uri>
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</references>
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<metadata tag="requester" timestamp="2022-08-14T00:09:54.090013Z">ajak</metadata>
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<metadata tag="submitter" timestamp="2022-08-14T00:09:54.093255Z">ajak</metadata>
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</glsa>
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