Description
The rio_ioctl function in drivers/net/ethernet/dlink/dl2k.c in the Linux kernel before 3.3.7 does not restrict access to the SIOCSMIIREG command, which allows local users to write data to an Ethernet adapter via an ioctl 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 | 3.2.19-1 | — |
| Debian 13 | linux | 3.2.19-1 | — |
| Debian 12 | linux | 3.2.19-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-279.9.1.el6 | RHSA-2012:1304 |
| RHEL 5 | kernel +12 | 2.6.18-308.13.1.el5 | RHSA-2012:1174 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.2 EUS | perf +15 | 2.6.32-220.30.1.el6 | RHSA-2012:1541 |
| RHEL 6.1 EUS | perf +14 | 2.6.32-131.36.1.el6 | RHSA-2012:1589 |
| RHEL 5.6 EUS | kernel +12 | 2.6.18-238.47.1.el5 | RHSA-2012:1481 |
| Red Hat MRG 2 | kernel-rt +11 | 3.2.23-rt37.56.el6rt | RHSA-2012:1282 |
| Red Hat MRG 2 | rt-firmware | 1.0-3.el6_3 | RHSA-2012:1282 |
Advisories 6
- RHSA-2012:1589 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1541 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1481 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1304 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1282 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1174 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- [oss-security] 20120504 Re: CVE Request: more tight ioctl permissions in dl2k driver mailing-list
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.7
- RHSA-2012:1174 vendor-advisory
- 53965 vdb-entry
- https://github.com/torvalds/linux/commit/1bb57e940e1958e40d51f2078f50c3a96a9b2d75
- RHSA-2012:1541 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1bb57e940e1958e40d51f2078f50c3a96a9b2d75
- RHSA-2012:1481 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=818820
- RHSA-2012:1589 vendor-advisory
- HPSBGN02970 vendor-advisory
- SUSE-SU-2015:0812 vendor-advisory