Description
Integer overflow in the sctp_getsockopt_local_addrs_old function in net/sctp/socket.c in the Stream Control Transmission Protocol (sctp) functionality in the Linux kernel before 2.6.25.9 allows local users to cause a denial of service (resource consumption and system outage) via vectors involving a large addr_num field in an sctp_getaddrs_old data structure.
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 | fai-kernels | 1.17+etch.22etch2 | DSA-1630-1 |
| Debian 4.0 | linux-2.6 | 2.6.18.dfsg.1-22etch2 | DSA-1630-1 |
| Debian 4.0 | user-mode-linux | 2.6.18-1um-2etch.22etch2 | DSA-1630-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 1 | kernel-rt +9 | 2.6.24.7-74.el5rt | RHSA-2008:0585 |
Advisories 2
- RHSA-2008:0585 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-1630-1 fai-kernels linux-2.6 user-mode-linux - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0207
- DSA-1630 vendor-advisory
- 29990 vdb-entry
- MDVSA-2008:167 vendor-advisory
- SUSE-SA:2008:052 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.7
- 31551 third-party-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=735ce972fbc8a65fb17788debd7bbe7b4383cc62
- 30901 third-party-advisory
- RHSA-2008:0585 vendor-advisory
- linux-kernel-sctpgetsockopt-dos(43559) vdb-entry
- MDVSA-2008:174 vendor-advisory
- 31107 third-party-advisory
- SUSE-SA:2008:037 vendor-advisory
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.9
- http://lwn.net/Articles/287350/
- ADV-2008-2511 vdb-entry
- 32370 third-party-advisory
- https://issues.rpath.com/browse/RPL-2629
- 31628 third-party-advisory
- 31202 third-party-advisory
- USN-625-1 vendor-advisory
- 1020514 vdb-entry