Description
Integer overflow in the sctp_setsockopt_auth_key function in net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux kernel 2.6.24-rc1 through 2.6.26.3 allows remote attackers to cause a denial of service (panic) or possibly have unspecified other impact via a crafted sca_keylength field associated with the SCTP_AUTH_KEY option.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 4.0 | linux-2.6.24 | 2.6.24-6~etchnhalf.5 | DSA-1636-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-81.el5rt | RHSA-2008:0857 |
Advisories 2
- DSA-1636-1 linux-2.6.24 - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2008:0857 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- 32190 third-party-advisory
- 32393 third-party-advisory
- DSA-1636 vendor-advisory
- 31881 third-party-advisory
- MDVSA-2008:223 vendor-advisory
- USN-659-1 vendor-advisory
- SUSE-SA:2008:053 vendor-advisory
- RHSA-2008:0857 vendor-advisory
- [oss-security] 20080826 CVE-2008-3526 Linux kernel sctp_setsockopt_auth_key() integer overflow mailing-list
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git%3Ba=commit%3Bh=30c2235cbc477d4629983d440cdc4f496fec9246
- linux-kernel-sctpsetsockoptauthkey-dos(44723) vdb-entry
- 30847 vdb-entry