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66 lines
2.0 KiB
66 lines
2.0 KiB
13 years ago
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<?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="200501-43">
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<title>f2c: Insecure temporary file creation</title>
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<synopsis>
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f2c is vulnerable to symlink attacks, potentially allowing a local user to
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overwrite arbitrary files.
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</synopsis>
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<product type="ebuild">f2c</product>
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<announced>January 30, 2005</announced>
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<revised>January 30, 2005: 01</revised>
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<bug>79725</bug>
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<access>local</access>
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<affected>
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<package name="dev-lang/f2c" auto="yes" arch="*">
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<unaffected range="ge">20030320-r1</unaffected>
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<vulnerable range="le">20030320</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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f2c is a Fortran to C translator. Portage uses this package in
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some ebuilds to build Fortran sources.
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</p>
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</background>
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<description>
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<p>
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Javier Fernandez-Sanguino Pena from the Debian Security Audit Team
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discovered that f2c creates temporary files in world-writeable
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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
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files directory, pointing to a valid file somewhere on the filesystem.
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When f2c is executed, this would result in the file being overwritten
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with the rights of the user running the software, which could be the
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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 f2c 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-lang/f2c-20030320-r1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0017">CAN-2005-0017</uri>
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</references>
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<metadata tag="submitter" timestamp="Sat, 29 Jan 2005 12:00:55 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Sat, 29 Jan 2005 16:13:04 +0000">
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vorlon078
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</metadata>
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</glsa>
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