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Status published
High
CVE-2018-18445
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x...
Vulnerability Description
In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x before 4.18.13, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifier.c mishandles 32-bit right shifts.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13
- https://usn.ubuntu.com/3847-1/
- https://usn.ubuntu.com/3835-1/
- https://access.redhat.com/errata/RHSA-2019:0512
- https://usn.ubuntu.com/3847-2/
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75
- https://usn.ubuntu.com/3832-1/
- https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681
- https://usn.ubuntu.com/3847-3/
- https://access.redhat.com/errata/RHSA-2019:0514
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1686
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681
- https://support.f5.com/csp/article/K38456756
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Affected Vendor
linux
View all reports →Affected Software
linux kernel, ubuntu linux, enterprise linux desktop, enterprise linux server, enterprise linux server aus, enterprise linux server eus, enterprise linux server tus, enterprise linux workstation
Vulnerable Versions:
4.14.9, 4.15, 14.04, 16.04, 18.04, 18.10, 7.0, 7.6
Timeline
Official Publish:
October 17th, 2018
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.