Published: 17/10/2018 Updated: 17/01/2023

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 641

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

In the Linux kernel 4.14.x, 4.15.x, 4.16.x, 4.17.x, and 4.18.x prior to 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.

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linux linux kernel
canonical ubuntu linux 16.04
canonical ubuntu linux 14.04
canonical ubuntu linux 18.04
canonical ubuntu linux 18.10
redhat enterprise linux desktop 7.0
redhat enterprise linux workstation 7.0
redhat enterprise linux server 7.0
redhat enterprise linux server tus 7.6
redhat enterprise linux server eus 7.6
redhat enterprise linux server aus 7.6
redhat enterprise linux server 7.6

Synopsis Important: kernel security, bug fix, and enhancement update Type/Severity Security Advisory: Important Topic An update for kernel is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring S ...

Synopsis Important: kernel-rt security and bug fix update Type/Severity Security Advisory: Important Topic An update for kernel-rt is now available for Red Hat Enterprise Linux 7Red Hat Product Security has rated this update as having a security impact of Important A Common Vulnerability Scoring System (C ...

Several security issues were fixed in the Linux kernel ...

A security flaw was found in the Linux kernel in the adjust_scalar_min_max_vals() function in kernel/bpf/verifierc A faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because this function mishandles 32-bit right shifts A local unprivileged user cannot leverage this flaw, but as a privileged user ("ro ...

In the Linux kernel 414x before 41475 and 418x before 41813, faulty computation of numeric bounds in the BPF verifier permits out-of-bounds memory accesses because adjust_scalar_min_max_vals in kernel/bpf/verifierc mishandles 32-bit right shifts ...

CWE-125 https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75 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://usn.ubuntu.com/3832-1/https://usn.ubuntu.com/3835-1/https://usn.ubuntu.com/3847-3/https://usn.ubuntu.com/3847-2/https://usn.ubuntu.com/3847-1/https://access.redhat.com/errata/RHSA-2019:0514 https://access.redhat.com/errata/RHSA-2019:0512 https://support.f5.com/csp/article/K38456756 https://nvd.nist.gov https://access.redhat.com/errata/RHSA-2019:0512 https://usn.ubuntu.com/3847-3/

CVE-2018-18445

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