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    CVE-2009-0641

    sys_term.c in telnetd in FreeBSD 7.0-RELEASE and other 7.x versions deletes dangerous environment variables with a method that was valid only in older FreeBSD distributions, which might allow remote attackers to execute arbitrary code by passing a crafted environment variable from a telnet client, as demonstrated by an LD_PRELOAD value that references a malicious library.

    Published:Feb 18, 2009
    Last Modified:Apr 23, 2026
    EPS:Feb 18, 2009
    EPSS Score:0.10148
    CVSS Score:9.3

    Affected Products

    Vendor
    Freebsd
    Product
    Freebsd

    Exploits

    http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.htmlhttp://www.securityfocus.com/bid/33777http://lists.grok.org.uk/pipermail/full-disclosure/2009-February/067954.htmlhttp://www.securityfocus.com/bid/33777https://www.exploit-db.com/exploits/8055

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    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