CVE Vulnerability

CVE-2018-18445

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.

7.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Scope

7.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/torvalds/linux/commit/b799207e1e1816b09e7a5920fbb2d5fcf6edd681 Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.13 Release Notes Patch
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.75 Release Notes Patch
https://bugs.chromium.org/p/project-zero/issues/detail?id=1686 Issue Tracking Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b799207e1e1816b09e7a5920fbb2d5fcf6edd681 Patch Third Party Advisory
https://usn.ubuntu.com/3832-1/ Third Party Advisory
https://usn.ubuntu.com/3835-1/ Third Party Advisory
https://usn.ubuntu.com/3847-3/ Third Party Advisory
https://usn.ubuntu.com/3847-2/ Third Party Advisory
https://usn.ubuntu.com/3847-1/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0514 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0512 Third Party Advisory
https://support.f5.com/csp/article/K38456756 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:*
Information

Published : 2018-10-17 07:29

Updated : 2023-01-17 09:34

NVD link : CVE-2018-18445

Mitre link : CVE-2018-18445

Products Affected
No products.
CWE
CWE-1335

Incorrect Bitwise Shift of Integer