Description
The __driver_rfc4106_decrypt function in arch/x86/crypto/aesni-intel_glue.c in the Linux kernel before 3.19.3 does not properly determine the memory locations used for encrypted data, which allows context-dependent attackers to cause a denial of service (buffer overflow and system crash) or possibly execute arbitrary code by triggering a crypto API call, as demonstrated by use of a libkcapi test program with an AF_ALG(aead) 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 | 3.16.7-ckt9-3 | — |
| Debian 13 | linux | 3.16.7-ckt9-3 | — |
| Debian 12 | linux | 3.16.7-ckt9-3 | — |
| Debian 8 | linux | 3.16.7-ckt9-3~deb8u1 | DSA-3237-1 |
| Debian 7 | linux | 3.2.68-1+deb7u1 | DSA-3237-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-53.88 | USN-2614-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-38.52~14.04.1 | USN-2615-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-kdump +4 | 3.10.0-229.4.2.el7 | RHSA-2015:0987 |
| RHEL 7 | kernel-rt +7 | 3.10.0-229.4.2.rt56.141.6.el7_1 | RHSA-2015:0981 |
| RHEL 7 | perf +13 | 3.10.0-229.4.2.ael7b | RHSA-2015:0987 |
| RHEL 6 | perf +16 | 2.6.32-504.23.4.el6 | RHSA-2015:1081 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.5 EUS | perf +16 | 2.6.32-431.59.1.el6 | RHSA-2015:1199 |
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-229.rt56.151.el6rt | RHSA-2015:0989 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | kernel-docs +1 | 3.12.43-52.6.2 | SUSE-SU-2015:1071-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.43-52.6.1 | SUSE-SU-2015:1071-1 |
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.37.1 | SUSE-SU-2015:1478-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | kernel-xen +3 | 3.12.43-52.6.1 | SUSE-SU-2015:1071-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_1 +1 | 3-2.1 | SUSE-SU-2015:1489-1, SUSE-SU-2015:1488-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_3 | 2-7.1 | SUSE-SU-2015:1487-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_4 | 2-10.1 | SUSE-SU-2015:1491-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_5 | 1-2.3 | SUSE-SU-2015:1071-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-68.2.2.el6uek | 0.4.3-4.el6 | ELSA-2015-3035 |
| Oracle Linux 7 | dtrace-modules-3.8.13-68.2.2.el7uek | 0.4.3-4.el7 | ELSA-2015-3035 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-68.2.2.el7uek | ELSA-2015-3035 |
| Oracle Linux 7 | perf +11 | 3.10.0-229.4.2.el7 | ELSA-2015-0987 |
Advisories 16
- RHSA-2015:1199 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:1081 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:0989 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:0987 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:0981 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-2614-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3237-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2615-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:1491-1 Live patch for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1488-1 Live patch for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1478-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1489-1 Live patch for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1071-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1487-1 Live patch for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-3035 Important: Unbreakable Enterprise kernel security and bugfix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 13, 2015
- ELSA-2015-0987 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 12, 2015
References
- USN-2631-1 vendor-advisory
- SUSE-SU-2015:1491 vendor-advisory
- SUSE-SU-2015:1489 vendor-advisory
- USN-2632-1 vendor-advisory
- SUSE-SU-2015:1488 vendor-advisory
- https://github.com/torvalds/linux/commit/ccfe8c3f7e52ae83155cb038753f4c75b774ca8a
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.3
- https://bugzilla.redhat.com/show_bug.cgi?id=1213322
- DSA-3237 vendor-advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ccfe8c3f7e52ae83155cb038753f4c75b774ca8a
- RHSA-2015:1199 vendor-advisory
- SUSE-SU-2015:1478 vendor-advisory
- [oss-security] 20150414 Buffer overruns in Linux kernel RFC4106 implementation using AESNI mailing-list
- 1032416 vdb-entry
- SUSE-SU-2015:1487 vendor-advisory
- RHSA-2015:1081 vendor-advisory