Description
The cipso_v4_validate function in net/ipv4/cipso_ipv4.c in the Linux kernel before 3.4.8 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via an IPOPT_CIPSO IP_OPTIONS setsockopt system call.
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 14 | linux | 3.2.29-1 | — |
| Debian 13 | linux | 3.2.29-1 | — |
| Debian 12 | linux | 3.2.29-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-358.el6 | RHSA-2013:0496 |
Advisories 1
- RHSA-2013:0496 Red Hat Security Advisory: Red Hat Enterprise Linux 6 kernel update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- RHSA-2013:0496 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=912900
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=89d7ae34cdda4195809a5a987f697a517a2a3177
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.8
- https://github.com/torvalds/linux/commit/89d7ae34cdda4195809a5a987f697a517a2a3177
- [oss-security] 20130219 Re: CVE request -- Linux kernel: net: CIPSO_V4_TAG_LOCAL tag NULL pointer dereference mailing-list