61 lines
2.4 KiB
XML
61 lines
2.4 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="201702-23">
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<title>Dropbear: Multiple vulnerabilities</title>
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<synopsis>Multiple vulnerabilities have been found in Dropbear, the worst of
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which allows remote attackers to execute arbitrary code.
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</synopsis>
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<product type="ebuild">dropbear</product>
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<announced>2017-02-20</announced>
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<revised count="1">2017-02-20</revised>
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<bug>605560</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/dropbear" auto="yes" arch="*">
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<unaffected range="ge">2016.74</unaffected>
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<vulnerable range="lt">2016.74</vulnerable>
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</package>
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</affected>
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<background>
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<p>Dropbear is an SSH server and client designed with a small memory
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footprint.
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</p>
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</background>
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<description>
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<p>Multiple vulnerabilities have been discovered in Dropbear. Please review
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the CVE identifiers referenced below for details.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could possibly execute arbitrary code with root
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privileges if usernames containing special characters can be created on a
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system. Also, a dbclient user who can control username or host arguments
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could potentially run arbitrary code with the privileges of the process.
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</p>
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<p>In addition, a remote attacker could entice a user to process a
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specially crafted SSH key using dropbearconvert, possibly resulting in
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execution of arbitrary code with the privileges of the process or a
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Denial of Service condition.
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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 Dropbear 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 ">=net-misc/dropbear-2016.74"
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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/nvd.cfm?cvename=CVE-2016-7406">CVE-2016-7406</uri>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7407">CVE-2016-7407</uri>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7408">CVE-2016-7408</uri>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7409">CVE-2016-7409</uri>
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</references>
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<metadata tag="requester" timestamp="2017-02-05T22:53:36Z">b-man</metadata>
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<metadata tag="submitter" timestamp="2017-02-20T23:45:39Z">whissi</metadata>
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</glsa>
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