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Fencer Vulns
medium 4.7

CVE-2008-4445 json

The sctp_auth_ep_set_hmacs function in net/sctp/auth.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kerne…

published 2008-10-06 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4426

cvss
4.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

The sctp_auth_ep_set_hmacs function in net/sctp/auth.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel before 2.6.26.4, when the SCTP-AUTH extension is enabled, does not verify that the identifier index is within the bounds established by SCTP_AUTH_HMAC_ID_MAX, which allows local users to obtain sensitive information via a crafted SCTP_HMAC_IDENT IOCTL request involving the sctp_getsockopt function, a different vulnerability than CVE-2008-4113.

Patch / fix

  • kernel-rt enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-trace enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-vanilla enterprise mrg 1 2.6.24.7-81.el5rt
  • kernel-rt-debuginfo-common enterprise mrg 1 2.6.24.7-81.el5rt

red hat advisories RHSA-2008:0857

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-4445 updated

kernel: sctp: fix random memory dereference with SCTP_HMAC_IDENT option

  • Red Hat MRG Realtime for RHEL 5 Server kernel-rt 2.6.24.7-81.el5rt, kernel-rt-trace 2.6.24.7-81.el5rt, kernel-rt-vanilla 2.6.24.7-81.el5rt, kernel-rt-debuginfo-common 2.6.24.7-81.el5rt
    fixed: vendor fix RHSA-2008:0857

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.45% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • marc.info http://marc.info/?l=linux-sctp&m=121986743209110&w=2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/AC:M/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.