Vulnerability CVE-2008-1804
Published: 2008-05-22   Modified: 2012-02-12

Description:
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.

Type:

CWE-DesignError

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Snort -> Snort 

 References:
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
http://xforce.iss.net/xforce/xfdb/42584
http://www.vupen.com/english/advisories/2008/1602
http://www.securityfocus.com/bid/29327
http://www.ipcop.org/index.php?name=News&file=article&sid=40
http://securitytracker.com/id?1020081
http://secunia.com/advisories/31204
http://secunia.com/advisories/30563
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
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://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
http://secunia.com/advisories/30348
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