81 lines
2.8 KiB
XML
81 lines
2.8 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="200506-08">
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<title>GNU shtool, ocaml-mysql: Insecure temporary file creation</title>
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<synopsis>
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GNU shtool and ocaml-mysql are vulnerable to symlink attacks, potentially
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allowing a local user to overwrite arbitrary files.
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</synopsis>
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<product type="ebuild">GNU shtool</product>
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<announced>June 11, 2005</announced>
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<revised>June 11, 2005: 01</revised>
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<bug>93782</bug>
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<bug>93784</bug>
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<access>local</access>
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<affected>
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<package name="dev-util/shtool" auto="yes" arch="*">
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<unaffected range="ge">2.0.1-r2</unaffected>
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<vulnerable range="lt">2.0.1-r2</vulnerable>
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</package>
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<package name="dev-ml/ocaml-mysql" auto="yes" arch="*">
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<unaffected range="ge">1.0.3-r1</unaffected>
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<vulnerable range="lt">1.0.3-r1</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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GNU shtool is a compilation of small shell scripts into a single
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shell tool. The ocaml-mysql package includes the GNU shtool code.
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</p>
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</background>
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<description>
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<p>
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Eric Romang has discovered that GNU shtool insecurely creates
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temporary files with predictable filenames (CAN-2005-1751). On closer
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inspection, Gentoo Security discovered that the shtool temporary file,
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once created, was being reused insecurely (CAN-2005-1759).
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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
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files directory, pointing to a valid file somewhere on the filesystem.
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When a GNU shtool script is executed, this would result in the file
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being overwritten with the rights of the user running the script, 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 GNU shtool 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-util/shtool-2.0.1-r2"</code>
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<p>
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All ocaml-mysql 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-ml/ocaml-mysql-1.0.3-r1"</code>
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</resolution>
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<references>
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<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1751">CAN-2005-1751</uri>
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<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1759">CAN-2005-1759</uri>
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</references>
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<metadata tag="requester" timestamp="Fri, 27 May 2005 16:05:53 +0000">
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vorlon078
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</metadata>
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<metadata tag="submitter" timestamp="Sat, 28 May 2005 21:16:10 +0000">
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formula7
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</metadata>
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<metadata tag="bugReady" timestamp="Fri, 10 Jun 2005 15:51:35 +0000">
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koon
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</metadata>
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</glsa>
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