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    CVE-2008-1804

    preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.

    Published:May 21, 2008
    Last Modified:Apr 23, 2026
    EPS:May 22, 2008
    EPSS Score:0.0023
    CVSS Score:6.8

    Affected Products

    Vendor
    Snort
    Product
    Snort

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
    http://cvs.snort.org/viewcvs.cgi/snort/src/preprocessors/spp_frag3.c.diff?r1=text&tr1=1.46.2.4&r2=text&tr2=1.46.2.5&diff_format=h
    http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
    http://secunia.com/advisories/30348
    http://secunia.com/advisories/30563
    http://secunia.com/advisories/31204
    http://securitytracker.com/id?1020081
    http://www.ipcop.org/index.php?name=News&file=article&sid=40
    http://www.securityfocus.com/bid/29327
    http://www.vupen.com/english/advisories/2008/1602
    https://exchange.xforce.ibmcloud.com/vulnerabilities/42584
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html
    http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
    http://cvs.snort.org/viewcvs.cgi/snort/src/preprocessors/spp_frag3.c.diff?r1=text&tr1=1.46.2.4&r2=text&tr2=1.46.2.5&diff_format=h
    http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
    http://secunia.com/advisories/30348
    http://secunia.com/advisories/30563
    http://secunia.com/advisories/31204
    http://securitytracker.com/id?1020081
    http://www.ipcop.org/index.php?name=News&file=article&sid=40
    http://www.securityfocus.com/bid/29327
    http://www.vupen.com/english/advisories/2008/1602
    https://exchange.xforce.ibmcloud.com/vulnerabilities/42584
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
    https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html

    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