CVE-2006-2271

The ECNE chunk handling in Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (kernel panic) via an unexpected chunk when the session is in CLOSED state.

Published: 2006-05-09 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-2271 is rated Moderate Risk (58.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 4.34%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-2271

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.13% 4.34% -3.78%
2 2025-06-02 6.38% 8.13% +1.74%
3 2025-03-30 — 6.38% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-2271

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2006-2271

OS Trackers for CVE-2006-2271

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2006-2271
ubuntu medium CVE-2006-2271 medium priority: Ubuntu including 2 source packages (linux-source-2.6.15, linux-source-2.6.17), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 4, needs-triage 2, released 2. https://ubuntu.com/security/CVE-2006-2271

Affected software / configurations for CVE-2006-2271

Vendor Product Version Raw CPE
lksctp lksctp 2.6.0_test1_0.7.2 cpe:2.3:a:lksctp:lksctp:2.6.0_test1_0.7.2:*:*:*:*:*:*:*
lksctp lksctp 2.6.0_test4_0.7.3 cpe:2.3:a:lksctp:lksctp:2.6.0_test4_0.7.3:*:*:*:*:*:*:*
lksctp lksctp 2.6.2_0.9.0 cpe:2.3:a:lksctp:lksctp:2.6.2_0.9.0:*:*:*:*:*:*:*
lksctp lksctp 2.6.3_1.0.0 cpe:2.3:a:lksctp:lksctp:2.6.3_1.0.0:*:*:*:*:*:*:*
lksctp lksctp 2.6.6_1.0.1 cpe:2.3:a:lksctp:lksctp:2.6.6_1.0.1:*:*:*:*:*:*:*
lksctp lksctp 2.6.10_1.0.2 cpe:2.3:a:lksctp:lksctp:2.6.10_1.0.2:*:*:*:*:*:*:*
lksctp lksctp 2.6.13_1.0.3 cpe:2.3:a:lksctp:lksctp:2.6.13_1.0.3:*:*:*:*:*:*:*
lksctp lksctp 2.6.14_1.0.4 cpe:2.3:a:lksctp:lksctp:2.6.14_1.0.4:*:*:*:*:*:*:*
lksctp lksctp 2.6.15_1.0.5 cpe:2.3:a:lksctp:lksctp:2.6.15_1.0.5:*:*:*:*:*:*:*
lksctp lksctp 2.6.16_1.0.6 cpe:2.3:a:lksctp:lksctp:2.6.16_1.0.6:*:*:*:*:*:*:*

References for CVE-2006-2271

URL Tags
http://archives.neohapsis.com/archives/fulldisclosure/2006-05/0227.html Patch
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=35d63edb1c807bc5317e49592260e84637bc432e
http://labs.musecurity.com/advisories/MU-200605-01.txt Patch
http://secunia.com/advisories/19990 Patch Vendor Advisory
http://secunia.com/advisories/20157
http://secunia.com/advisories/20237
http://secunia.com/advisories/20398
http://secunia.com/advisories/20671
http://secunia.com/advisories/20716
http://secunia.com/advisories/20914
http://secunia.com/advisories/21476
http://secunia.com/advisories/21745
http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
http://www.debian.org/security/2006/dsa-1097
http://www.debian.org/security/2006/dsa-1103
http://www.mandriva.com/security/advisories?name=MDKSA-2006:086
http://www.novell.com/linux/security/advisories/2006-05-31.html
http://www.osvdb.org/25632
http://www.redhat.com/support/errata/RHSA-2006-0493.html
http://www.securityfocus.com/bid/17910
http://www.trustix.org/errata/2006/0026
http://www.ubuntu.com/usn/usn-302-1
http://www.vupen.com/english/advisories/2006/1734
http://www.vupen.com/english/advisories/2006/2554
https://exchange.xforce.ibmcloud.com/vulnerabilities/26430
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10934
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