CVE-2023-1476

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 5%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
𝑥
< 5.14
redhatenterprise_linux
8.0
redhatenterprise_linux_eus
8.8
redhatenterprise_linux_for_power_little_endian
8.0_ppc64le:_ppc64le
redhatenterprise_linux_for_power_little_endian_eus
8.8_ppc64le:_ppc64le
redhatenterprise_linux_server_tus
8.8
𝑥
= Vulnerable software versions
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
kpatch-patch-4
RHEL 8
0:1-2.el8_7
fixed
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2023:1659
https://access.redhat.com/security/cve/CVE-2023-1476
https://bugzilla.redhat.com/show_bug.cgi?id=2176035
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2
https://access.redhat.com/errata/RHSA-2023:1659
https://access.redhat.com/security/cve/CVE-2023-1476
https://bugzilla.redhat.com/show_bug.cgi?id=2176035
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2