CVE-2008-1804

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-05-22 · updated 2026-06-16

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.

Affected products

Snort: through 2.8.0

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

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