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CVE-2008-4576

26
FAUCET Score

CVE-2008-4576 describes a denial-of-service vulnerability in the SCTP implementation of the Linux kernel, affecting versions prior to 2.6.25.18. A remote attacker can trigger an OOPS by sending a specially crafted INIT-ACK message that causes a cleanup of active transports, leading to a system crash when the T1-Init timer expires. This vulnerability has a CVSS score of 7.8, indicating high severity with a network-based attack vector and low attack complexity, resulting in complete availability impact. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB, though it has received significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.25.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.2.27CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.2.27:*:*:*:*:*:*:*
2.4.36CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36:*:*:*:*:*:*:*
2.4.36.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36.1:*:*:*:*:*:*:*
2.4.36.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.36.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.68%
Probability of exploitation in next 30 days
EPSS Percentile
88.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0368 is in the 80th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-93.el5rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-92.1.22.el5
View patch

Vendor Advisories (1)

redhatCVE-2008-4576Important

kernel: sctp: Fix oops when INIT-ACK indicates that peer doesn't support AUTH

Sep 18, 2008

References

kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.25.18
lists.opensuse.org / opensuse-security-announce/2008-10/msg00008.html
lists.opensuse.org / opensuse-security-announce/2008-10/msg00010.html
lists.opensuse.org / opensuse-security-announce/2008-11/msg00001.html
permalink.gmane.org / gmane.comp.security.oss.general/1039
secunia.com / advisories/32370
secunia.com / advisories/32386
Vendor Advisory
secunia.com / advisories/32759
secunia.com / advisories/32918
secunia.com / advisories/32998
secunia.com / advisories/33180
secunia.com / advisories/33182
secunia.com / advisories/33586
exchange.xforce.ibmcloud.com / vulnerabilities/45773
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9822
redhat.com / archives/fedora-package-announce/2008-October/msg00689.html
redhat.com / archives/fedora-package-announce/2008-October/msg00693.html
debian.org / security/2008/dsa-1681
debian.org / security/2008/dsa-1687
gossamer-threads.com / lists/linux/kernel/981012
kernel.org / pub/linux/kernel/v2.6/snapshots/patch-2.6.27-rc6-git6.log
redhat.com / support/errata/RHSA-2008-1017.html
redhat.com / support/errata/RHSA-2009-0009.html
securityfocus.com / bid/31634
ubuntu.com / usn/usn-679-1