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89 lines
3.2 KiB
89 lines
3.2 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="200411-15">
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<title>OpenSSL, Groff: Insecure tempfile handling</title>
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<synopsis>
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groffer, included in the Groff package, and the der_chop script, included
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in the OpenSSL package, are both vulnerable to symlink attacks, potentially
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allowing a local user to overwrite arbitrary files with the rights of the
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user running the utility.
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</synopsis>
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<product type="ebuild">OpenSSL</product>
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<announced>2004-11-08</announced>
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<revised count="02">2006-08-23</revised>
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<bug>68404</bug>
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<bug>68407</bug>
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<access>local</access>
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<affected>
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<package name="dev-libs/openssl" auto="yes" arch="*">
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<unaffected range="ge">0.9.7d-r2</unaffected>
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<vulnerable range="lt">0.9.7d-r2</vulnerable>
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</package>
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<package name="sys-apps/groff" auto="yes" arch="*">
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<unaffected range="ge">1.19.1-r2</unaffected>
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<unaffected range="rge">1.18.1.1</unaffected>
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<vulnerable range="lt">1.19.1-r2</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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OpenSSL is a toolkit implementing the Secure Sockets Layer and
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Transport Layer Security protocols as well as a general-purpose
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cryptography library. It includes the der_chop script, which is used to
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convert DER-encoded certificates to PEM format. Groff (GNU Troff) is a
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typesetting package which reads plain text mixed with formatting
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commands and produces formatted output. It includes groffer, a command
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used to display groff files and man pages on X and tty.
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</p>
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</background>
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<description>
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<p>
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groffer and the der_chop script create temporary files in
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world-writeable directories with predictable names.
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</p>
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</description>
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<impact type="normal">
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<p>
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A local attacker could create symbolic links in the temporary files
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directory, pointing to a valid file somewhere on the filesystem. When
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groffer or der_chop is executed, this would result in the file being
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overwritten with the rights of the user running the utility, which
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could be the root user.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Groff users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose sys-apps/groff</code>
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<p>
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All OpenSSL users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.7d-r2"</code>
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<p>
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Note: /etc/ssl/misc/der_chop is protected by Portage as a configuration
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file. Don't forget to use etc-update and overwrite the old version with
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the new one.
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</p>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0969">CAN-2004-0969</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0975">CAN-2004-0975</uri>
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</references>
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<metadata tag="submitter" timestamp="2004-11-07T18:43:48Z">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="2004-11-07T18:44:31Z">
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koon
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</metadata>
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</glsa>
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