PT-2023-7122 · Linux+2 · Linux Kernel+2

Alex · Published 2023-03-07 · Updated 2024-10-04 · CVE-2023-1476

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description 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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

BDU:2023-08149

CESA-2023_1659

CVE-2023-1476

RHSA-2023:1659

Affected Products

Centos

Linux Kernel

Red Os

References · 10

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=97113eb39fa7972722ff490b947d8af023e1f6a2 · Patch
• https://bdu.fstec.ru/vul/2023-08149 · Security Note
• https://access.redhat.com/errata/RHSA-2023:1659 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-1476 · Security Note
• https://osv.dev/vulnerability/CVE-2023-1476 · Vendor Advisory
• https://twitter.com/CVEnew/status/1720359775123456486 · Twitter Post
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-kernel-lt-cve-2023-1476 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2176035 · Note
• https://twitter.com/VulmonFeeds/status/1720390854739698012 · Twitter Post
• https://access.redhat.com/security/cve/CVE-2023-1476 · Note