01 Record
CVE-2002-2438
TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 Description
TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g. RST flag) set, which was not correctly discarded by the Linux TCP stack after firewalling.
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
- 3.74% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 89.3% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
- 2021-05-18 11:36Z5 YR AGO
- Last updated
- 2024-08-08 04:06Z2 YR AGO
- Reserved
- 2012-01-04
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-287Improper AuthenticationClass
- Data version
- 5.1
- Document digest
- 379d52de16d2d5f2fc0377b0d9ea298a1029eca24ac0f7c29b98d8ec76b394ad
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/8
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/4
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/12
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/11
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/13
- www.openwall.com[oss-security] 20120203 Re: CVE Request (2002): Linux TCP stack could accept invalid TCP flag combinationshttp://www.openwall.com/lists/oss-security/2012/02/03/7
- www.openwall.com[oss-security] 20120529 Re: CVE Request (2002): Linux TCP stack could accept invalid TCP flag combinationshttp://www.openwall.com/lists/oss-security/2012/05/29/8
- www.openwall.com[oss-security] 20140212 Re: Old CVE ids, public, but still "RESERVED"http://www.openwall.com/lists/oss-security/2014/02/12/8
- www.openwall.com[oss-security] 20120530 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/9
- www.openwall.com[oss-security] 20120531 Re: CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/31/3
- www.openwall.com[oss-security] 20120530 CVE Request -- kernel: tcp: drop SYN+FIN messageshttp://www.openwall.com/lists/oss-security/2012/05/30/2
- www.kb.cert.orgVU#464113https://www.kb.cert.org/vuls/id/464113
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/464113%2C
- bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=744994%2C
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2012/02/03/7
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20210727-0003/