CVE-2009-1958

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    CVE-2009-1958

    Published: 8 Jun 2009Last Modified: 10 Apr 2026

    Summary:

    Details: charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.

    References: http://download.strongswan.org/CHANGES4.txt, http://secunia.com/advisories/35296, http://secunia.com/advisories/35685, http://secunia.com/advisories/36922, http://www.debian.org/security/2009/dsa-1899, http://download.strongswan.org/patches/04_swapped_ts_check_patch/strongswan-4.x.x._swapped_ts_check.patch, http://download.strongswan.org/patches/04_swapped_ts_check_patch/strongswan-4.x.x._swapped_ts_check.readme, http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html, http://www.securityfocus.com/bid/35178, https://lists.strongswan.org/pipermail/users/2009-May/003457.html

    Affected packages

    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