Linux Kernel Integer Overflow
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-02-16 · passed 6 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their privileges on the system.
Who is affected
Linux Kernel. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-190.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 6 months ago
Sources
- NVD entry for CVE-2018-14634 nvd.nist.gov/vuln/detail/CVE-2018-14634
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- git.kernel.org git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/
- kernel.org www.kernel.org/
- cve.org www.cve.org/CVERecord?id=CVE-2018-14634
- access.redhat.com access.redhat.com/errata/RHSA-2018:3540
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2018-14634