Description
The (1) key_notify_sa_flush and (2) key_notify_policy_flush functions in net/key/af_key.c in the Linux kernel before 3.10 do not initialize certain structure members, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify interface of an IPSec key_socket.
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 | 3.10.1-1 | — |
| Debian 13 | linux | 3.10.1-1 | — |
| Debian 12 | linux | 3.10.1-1 | — |
| Debian 7 | linux | 3.2.46-1+deb7u1 | DSA-2745-1 |
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze4 | DSA-2766-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +16 | 2.6.32-431.el6 | RHSA-2013:1645 |
| RHEL 5 | kernel +12 | 2.6.18-348.16.1.el5 | RHSA-2013:1166 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +11 | 3.6.11.5-rt37.55.el6rt | RHSA-2013:1264 |
Advisories 5
- RHSA-2013:1645 Red Hat Security Advisory: Red Hat Enterprise Linux 6 kernel update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- DSA-2745-1 linux - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2766-1 linux-2.6 - several Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2013:1264 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- RHSA-2013:1166 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- USN-1943-1 vendor-advisory
- RHSA-2013:1166 vendor-advisory
- USN-1913-1 vendor-advisory
- SUSE-SU-2013:1473 vendor-advisory
- https://github.com/torvalds/linux/commit/a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887
- USN-1938-1 vendor-advisory
- RHSA-2013:1645 vendor-advisory
- USN-1944-1 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a5cc68f3d63306d0d288f31edfc2ae6ef8ecd887
- USN-1945-1 vendor-advisory
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.10.bz2
- DSA-2766 vendor-advisory
- openSUSE-SU-2013:1971 vendor-advisory
- SUSE-SU-2013:1474 vendor-advisory
- USN-1947-1 vendor-advisory
- [oss-security] 20130702 Re: CVE Request: information leak in AF_KEY notify messages mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=980995
- USN-1941-1 vendor-advisory
- USN-1942-1 vendor-advisory
- USN-1912-1 vendor-advisory
- USN-1946-1 vendor-advisory