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66 lines
2.3 KiB
66 lines
2.3 KiB
<?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="201708-05">
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<title>RAR and UnRAR: User-assisted execution of arbitrary code</title>
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<synopsis>An integer overflow in RAR and UnRAR might allow remote attackers
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to execute arbitrary code.
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</synopsis>
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<product type="ebuild">rar,unrar</product>
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<announced>2017-08-21</announced>
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<revised count="1">2017-08-21</revised>
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<bug>622342</bug>
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<bug>622382</bug>
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<access>remote</access>
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<affected>
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<package name="app-arch/rar" auto="yes" arch="*">
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<unaffected range="ge">5.5.0_beta4_p20170628</unaffected>
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<vulnerable range="lt">5.5.0_beta4_p20170628</vulnerable>
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</package>
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<package name="app-arch/unrar" auto="yes" arch="*">
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<unaffected range="ge">5.5.5</unaffected>
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<vulnerable range="lt">5.5.5</vulnerable>
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</package>
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</affected>
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<background>
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<p>RAR and UnRAR provide command line interfaces for compressing and
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decompressing RAR files.
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</p>
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</background>
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<description>
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<p>A VMSF_DELTA memory corruption was discovered in which an integer
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overflow can be caused in DataSize+CurChannel. The result is a negative
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value of the “DestPos” variable which allows writing out of bounds
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when setting Mem[DestPos].
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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, by enticing a user to open a specially crafted
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archive, could execute arbitrary code with the privileges of the process.
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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 RAR 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
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">=app-arch/rar-5.5.0_beta4_p20170628"
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</code>
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<p>All UnRAR 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 ">=app-arch/unrar-5.5.5"
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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-2012-6706">CVE-2012-6706</uri>
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</references>
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<metadata tag="requester" timestamp="2017-06-21T12:23:53Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2017-08-21T01:03:02Z">b-man</metadata>
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</glsa>
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