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    CVE-2006-0539

    The convert-fcrontab program in fcron 3.0.0 might allow local users to gain privileges via a long command-line argument, which causes Linux glibc to report heap memory corruption, possibly because a strcpy in the strdup2 function can "overwrite some data."

    Published:Feb 4, 2006
    Last Modified:Apr 16, 2026
    EPS:Feb 4, 2006
    EPSS Score:0.00331
    CVSS Score:4.6

    Affected Products

    Vendor
    Thibault Godouet
    Product
    Fcron

    Exploits

    https://www.exploit-db.com/exploits/27159

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2010-0792 (CVSS 1.9) — fcrontab in fcron before 3.0.5 allows local users to read arbitrary files via a symlink attack on an unspecifi…
    CVE-2006-0575 (CVSS 5) — convert-fcrontab in Fcron 2.9.5 and 3.0.0 allows remote attackers to create or overwrite arbitrary files via "…
    CVE-2004-1031 (CVSS 7.2) — fcronsighup in Fcron 2.0.1, 2.9.4, and possibly earlier versions allows local users to bypass access restricti…
    CVE-2004-1032 (CVSS 2.1) — fcronsighup in Fcron 2.0.1, 2.9.4, and possibly earlier versions allows local users to delete arbitrary files …
    CVE-2004-1033 (CVSS 2.1) — Fcron 2.0.1, 2.9.4, and possibly earlier versions leak file descriptors of open files, which allows local user…
    CVE-2004-1030 (CVSS 2.1) — fcronsighup in Fcron 2.0.1, 2.9.4, and possibly earlier versions allows local users to gain sensitive informat…
    CVE-2001-0685 (CVSS 2.6) — Thibault Godouet FCron prior to 1.1.1 allows a local user to corrupt another user's crontab file via a symlink…

    References

    http://archives.neohapsis.com/archives/fulldisclosure/2006-01/0999.html
    http://fcron.free.fr/doc/en/changes.html
    http://fcron.free.fr/news.php#a20060206a.xml
    http://secunia.com/advisories/18719
    http://www.securityfocus.com/archive/1/423697/100/0/threaded
    http://www.securityfocus.com/bid/16467
    http://www.trustix.org/errata/2006/0036
    http://www.vupen.com/english/advisories/2006/0435
    https://bugs.trustix.org/show_bug.cgi?id=1754
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24444
    http://archives.neohapsis.com/archives/fulldisclosure/2006-01/0999.html
    http://fcron.free.fr/doc/en/changes.html
    http://fcron.free.fr/news.php#a20060206a.xml
    http://secunia.com/advisories/18719
    http://www.securityfocus.com/archive/1/423697/100/0/threaded
    http://www.securityfocus.com/bid/16467
    http://www.trustix.org/errata/2006/0036
    http://www.vupen.com/english/advisories/2006/0435
    https://bugs.trustix.org/show_bug.cgi?id=1754
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24444

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High