01 Record
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
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 82.5% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2008-05-22 10:00Z18 YR AGO
- Last updated
- 2024-08-07 08:32Z2 YR AGO
- Reserved
- 2008-04-15
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- d989e7f793251055262dd7ba4b0d4c052c0068fedf7fefab075af723b5289911
05 Affected products
VendorProductVersionsPlatforms
06 References
- exchange.xforce.ibmcloud.comsnort-ttl-security-bypass(42584)https://exchange.xforce.ibmcloud.com/vulnerabilities/42584
- cvs.snort.orghttp://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
- www.redhat.comFEDORA-2008-4986https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
- securitytracker.com1020081http://securitytracker.com/id?1020081
- www.vupen.comADV-2008-1602http://www.vupen.com/english/advisories/2008/1602
- www.redhat.comFEDORA-2008-5001https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
- secunia.com30348http://secunia.com/advisories/30348
- www.ipcop.orghttp://www.ipcop.org/index.php?name=News&file=article&sid=40
- www.securityfocus.com29327http://www.securityfocus.com/bid/29327
- labs.idefense.com20080521 Multiple Vendor Snort IP Fragment TTL Evasion Vulnerabilityhttp://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
- cvs.snort.orghttp://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
- www.redhat.comFEDORA-2008-5045https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html
- secunia.com31204http://secunia.com/advisories/31204
- secunia.com30563http://secunia.com/advisories/30563