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OpenAdvisories
High · 7.8 Known exploited Public exploit CVE-2018-14634 EUVD-2018-6537GHSA-4994-8w6g-9jvw

An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or o…

Published Sep 25, 2018 · Updated Jan 27, 2026 · Assigned by redhat

Vendor: The Linux Foundation Product: Kernel Package: linux Package: linux Package: linux-aws Package: linux-azure-fde Package: linux-euclid Package: linux-gcp Package: linux-gke Package: linux-hwe Package: linux-intel-iot-realtime Package: linux-lts-xenial Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-snapdragon Ecosystem: Debian Ecosystem: Ubuntu

Description

An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable.

Affected products

VendorProductAffectedFixed
The Linux Foundation kernel 2.6.x, 3.10.x, 4.14.x —

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 ↗
ReleasePackageFixed inAdvisory
Debian 14 linux 4.12.6-1 —
Debian 13 linux 4.12.6-1 —
Debian 12 linux 4.12.6-1 —
Debian 8 linux 3.16.59-1 DLA-1529-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-riscv +2 No fix yet —
Ubuntu 20.04 LTS linux-gke +3 No fix yet —
Ubuntu 16.04 LTS linux 4.4.0-93.116 —
Ubuntu 16.04 LTS linux-aws 4.4.0-1032.41 —
Ubuntu 16.04 LTS linux-euclid 4.4.0-9029.31 —
Ubuntu 16.04 LTS linux-gcp 4.13.0-1002.5 —
Ubuntu 16.04 LTS linux-hwe 4.13.0-32.35~16.04.1 —
Ubuntu 16.04 LTS linux-raspi2 4.4.0-1071.79 —
Ubuntu 16.04 LTS linux-snapdragon 4.4.0-1073.78 —
Ubuntu 14.04 LTS linux 3.13.0-160.210 USN-3775-1
Ubuntu 14.04 LTS linux-lts-xenial 4.4.0-93.116~14.04.1 —

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 7 kernel-rt +10 3.10.0-862.14.4.rt56.821.el7 RHSA-2018:2763
RHEL 7 perf +18 3.10.0-862.14.4.el7 RHSA-2018:2748
RHEL 6 perf +16 2.6.32-754.6.3.el6 RHSA-2018:2846
Show 11 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 7.4 EUS perf +18 3.10.0-693.43.1.el7 RHSA-2018:3540
RHEL 7.3 EUS perf +18 3.10.0-514.61.1.el7 RHSA-2018:3591
RHEL 7.2 TUS perf +12 3.10.0-327.76.1.el7 RHSA-2018:3590
RHEL 7.2 E4S perf +12 3.10.0-327.76.1.el7 RHSA-2018:3590
RHEL 7.2 AUS perf +12 3.10.0-327.76.1.el7 RHSA-2018:3590
RHEL 6.7 EUS perf +16 2.6.32-573.65.2.el6 RHSA-2018:2925
RHEL 6.6 TUS perf +10 2.6.32-504.76.2.el6 RHSA-2018:2924
RHEL 6.6 AUS perf +10 2.6.32-504.76.2.el6 RHSA-2018:2924
RHEL 6.5 AUS perf +10 2.6.32-431.93.2.el6 RHSA-2018:2933
RHEL 6.4 AUS perf +9 2.6.32-358.94.1.el6 RHSA-2018:3643
Red Hat MRG 2 kernel-rt +10 1:3.10.0-693.43.1.rt56.630.el6rt RHSA-2018:3586

SUSE

Security tracker ↗
ReleasePackageFixed inAdvisory
SLES 12 SP1 kernel-xen +3 3.12.74-60.64.104.1 SUSE-SU-2018:2908-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_22 10-2.1 SUSE-SU-2018:3171-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_23 9-2.1 SUSE-SU-2018:3171-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_24 +2 8-2.1 SUSE-SU-2018:3171-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_27 6-2.1 SUSE-SU-2018:3171-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_28 +1 5-2.1 SUSE-SU-2018:3171-1
SLES 12 SP1 kgraft-patch-SLE12-SP1_Update_30 4-2.1 SUSE-SU-2018:3171-1
SLES 12 kernel-ec2 +4 3.12.61-52.146.1 SUSE-SU-2018:3083-1, SUSE-SU-2018:2908-1
SLES 12 kgraft-patch-SLE12_Update_28 +1 10-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_30 +2 9-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_33 8-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_34 6-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_35 +1 5-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_37 4-2.1 SUSE-SU-2018:3238-1
SLES 12 kgraft-patch-SLE12_Update_38 1-1.5.1 SUSE-SU-2018:3083-1
SLES 11 SP4 kernel-ec2 +9 3.0.101-108.71.1 SUSE-SU-2018:2879-1
SLES 11 SP3 kernel-ec2 +7 3.0.101-0.47.106.50.1 SUSE-SU-2018:2907-1
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 12 SP1 kernel-xen +3 3.12.74-60.64.104.1 SUSE-SU-2018:2908-2
SLES for SAP 12 SP1 kgraft-patch-SLE12-SP1_Update_31 1-2.5.1 SUSE-SU-2018:2908-2
SLES for SAP 11 SP4 kernel-ec2 +8 3.0.101-108.71.1 SUSE-SU-2018:2879-1
SLE Real Time 11 SP4 kernel-rt +3 3.0.101.rt130-69.36.1 SUSE-SU-2018:3088-1
SUSE Linux Enterprise Point of Sale 11 SP3 kernel-ec2 +6 3.0.101-0.47.106.50.1 SUSE-SU-2018:2907-1

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 7 dtrace-modules-3.8.13-118.24.3.el6uek 0.4.5-3.el6 ELSA-2018-4233
Oracle Linux 7 dtrace-modules-3.8.13-118.24.3.el7uek 0.4.5-3.el7 ELSA-2018-4233
Oracle Linux 7 kernel-uek +5 3.8.13-118.24.3.el7uek ELSA-2018-4233, ELSA-2018-4230
Oracle Linux 7 perf +11 3.10.0-862.14.4.el7 ELSA-2018-2748

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • luan0ap/cve-2018-14634 ★ 8 · Oct 8, 2018

    proof-of-concept (PoC) for linux dists based on Debian, CentOS and RedHat - exploit 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 25

References