CVE-2002-2438 json
TCP firewalls could be circumvented by sending a SYN Packets with other flags (like e.g.
published 2021-05-18 5 y ago modified 2026-06-16 4 mo ago also EUVD-2002-2416
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.7%
- EPSS 3.7% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- linux linux_kernel 2.4.20
Exploit prediction
3.74% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- openwall.com http://www.openwall.com/lists/oss-security/2012/05/30/11 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- n/a kernel
Classification
- Weakness
-
- CWE-287 Improper Authentication
- Technology feeds
References
-
openwall.com
/lists/oss-security/2012/02/03/7
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/29/8
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/31/3
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/2
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2012/02/03/7
mailing-list, patch, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/11
mailing-list, exploit, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/8
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/4
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/12
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/13
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2014/02/12/8
mailing-list, third-party-advisory
-
openwall.com
/lists/oss-security/2012/05/30/9
mailing-list, third-party-advisory
-
kb.cert.org
/vuls/id/464113
third-party-advisory, us-government-resource
- kb.cert.org /vuls/id/464113%2C
- bugzilla.suse.com /show_bug.cgi?id=744994%2C
- security.netapp.com /advisory/ntap-20210727-0003/
Sources
- CVE List CVE-2002-2438
- NVD CVE-2002-2438
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