54 lines
1.8 KiB
XML
54 lines
1.8 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="202105-31">
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<title>Nettle: Denial of service</title>
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<synopsis>A vulnerability in Nettle could lead to a Denial of Service
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condition.
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</synopsis>
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<product type="ebuild">nettle</product>
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<announced>2021-05-26</announced>
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<revised count="1">2021-05-26</revised>
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<bug>780483</bug>
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<access>local, remote</access>
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<affected>
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<package name="dev-libs/nettle" auto="yes" arch="*">
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<unaffected range="ge">3.7.2</unaffected>
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<vulnerable range="lt">3.7.2</vulnerable>
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</package>
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</affected>
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<background>
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<p>Nettle is a cryptographic library that is designed to fit easily in
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almost any context: In cryptographic toolkits for object-oriented
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languages, such as C++, Python, or Pike, in applications like lsh or
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GnuPG, or even in kernel space.
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</p>
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</background>
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<description>
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<p>It was discovered that Nettle incorrectly handled signature
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verification.
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</p>
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</description>
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<impact type="low">
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<p>A remote attacker could send a specially crafted valid-looking input
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signature, possibly resulting in a Denial of Service condition or force
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an invalid signature.
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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 Nettle 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 ">=dev-libs/nettle-3.7.2"
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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-2021-20305">CVE-2021-20305</uri>
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</references>
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<metadata tag="requester" timestamp="2021-05-25T20:00:54Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2021-05-26T10:12:28Z">whissi</metadata>
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</glsa>
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