Description
The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
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 | 4.9.25-1 | — |
| Debian 13 | linux | 4.9.25-1 | — |
| Debian 12 | linux | 4.9.25-1 | — |
| Debian 8 | linux | 3.16.43-2+deb8u1 | DSA-3886-1 |
| Debian 7 | linux | 3.2.89-1 | DLA-993-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-gcp-6.11 +4 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-79.100 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1018.27 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1014.14 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.10.0-32.36~16.04.1 | USN-3361-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1057.64 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1059.63 | USN-3312-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-125.174 | USN-3360-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-79.100~14.04.1 | USN-3312-2 |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-rt +10 | 3.10.0-514.26.1.rt56.442.el7 | RHSA-2017:1616 |
| RHEL 7 | perf +18 | 3.10.0-514.26.1.el7 | RHSA-2017:1615 |
| RHEL 6 | perf +16 | 2.6.32-696.6.3.el6 | RHSA-2017:1723 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Mission Critical 6 | perf +9 | 2.6.32-220.75.1.el6 | RHSA-2017:2732 |
| RHEL 7.2 EUS | perf +18 | 3.10.0-327.58.1.el7 | RHSA-2017:1766 |
| RHEL 6.7 EUS | perf +16 | 2.6.32-573.45.1.el6 | RHSA-2017:2429 |
| RHEL 6.6 TUS | perf +10 | 2.6.32-504.62.1.el6 | RHSA-2017:1798 |
| RHEL 6.6 AUS | perf +10 | 2.6.32-504.62.1.el6 | RHSA-2017:1798 |
| RHEL 6.5 TUS | perf +10 | 2.6.32-431.82.1.el6 | RHSA-2017:2428 |
| RHEL 6.5 AUS | perf +10 | 2.6.32-431.82.1.el6 | RHSA-2017:2428 |
| RHEL 6.4 AUS | perf +9 | 2.6.32-358.81.1.el6 | RHSA-2017:1715 |
| RHEL 5.9 AUS | kernel +10 | 2.6.18-348.34.1.el5 | RHSA-2017:2472 |
| RHEL 5 ELS | kernel +12 | 2.6.18-422.el5 | RHSA-2017:2412 |
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-514.rt56.228.el6rt | RHSA-2017:1647 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el6uek | 0.4.5-3.el6 | ELSA-2017-3566 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el7uek | 0.4.5-3.el7 | ELSA-2017-3566 |
| Oracle Linux 7 | dtrace-modules-4.1.12-94.3.4.el6uek | 0.6.0-4.el6 | ELSA-2017-3565 |
| Oracle Linux 7 | dtrace-modules-4.1.12-94.3.4.el7uek | 0.6.0-4.el7 | ELSA-2017-3565 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.18.2.el7uek | ELSA-2017-3566, ELSA-2017-3565 |
| Oracle Linux 7 | perf +11 | 3.10.0-514.26.1.el7 | ELSA-2017-1615 |
Advisories 21
- RHSA-2017:2732 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:2472 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:2429 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:2428 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:2412 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1798 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1766 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1723 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1715 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1647 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1616 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1615 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-3361-1 linux-hwe vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3312-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3360-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-993-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3886-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3312-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- ELSA-2017-1615 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 28, 2017
- ELSA-2017-3566 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 16, 2017
- ELSA-2017-3565 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 16, 2017
References
- RHSA-2017:2732 vendor-advisory
- RHSA-2017:2412 vendor-advisory
- RHSA-2017:1798 vendor-advisory
- https://github.com/torvalds/linux/commit/13bf9fbff0e5e099e2b6f003a0ab8ae145436309
- RHSA-2017:1723 vendor-advisory
- RHSA-2017:1615 vendor-advisory
- RHSA-2017:1647 vendor-advisory
- RHSA-2017:1766 vendor-advisory
- RHSA-2017:1616 vendor-advisory
- RHSA-2017:2429 vendor-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=13bf9fbff0e5e099e2b6f003a0ab8ae145436309
- DSA-3886 vendor-advisory
- RHSA-2017:2428 vendor-advisory
- 98085 vdb-entry
- RHSA-2017:2472 vendor-advisory
- RHSA-2017:1715 vendor-advisory