CVE-2023-1476— Kpatch: mm/mremap.c: incomplete fix for cve-2022-41222
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 8
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于内存释放后重用，导致系统崩溃。攻击者利用该漏洞可以提升权限。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-1476
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Kpatch: mm/mremap.c: incomplete fix for cve-2022-41222
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于内存释放后重用，导致系统崩溃。攻击者利用该漏洞可以提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8::baseos
|
|
II. Public POCs for CVE-2023-1476
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-1476
请登录查看更多情报信息。
Patches & Fixes for CVE-2023-1476 (1)
Vendor Advisories for CVE-2023-1476 (3)
Same Patch Batch · Red Hat · 2023-11-03 · 5 CVEs total
| CVE-2023-3961 | 9.1 CRITICAL | Samba: smbd allows client access to unix domain sockets on the file system as root |
| CVE-2023-5824 | 7.5 HIGH | Squid: dos against http and https |
| CVE-2023-4091 | 6.5 MEDIUM | Samba: smb clients can truncate files with read-only permissions |
| CVE-2023-5088 | 6.4 MEDIUM | Qemu: improper ide controller reset can lead to mbr overwrite |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 8
-
CVE-2026-91926
Gss-ntlmssp: gss-ntlmssp: memory leak in ntlm_decode_target_ -
CVE-2026-74859
Gnome-tweaks: path traversal in theme installer -
CVE-2026-16445
Dracut: dracut: root code execution via dhcp options command -
CVE-2026-58380
Gimp: gimp: stack buffer overflow in pnmscanner_gettoken() -
CVE-2026-54231
Abrt: unsanitized systemd journal content written to dump di
Same vendor: Red Hat
-
CVE-2026-104988
Pki-core: dogtag-pki: redhat-pki: pki: est fullcmc authentic -
CVE-2026-95512
Freetype: freetype: denial of service via repeated subroutin -
CVE-2026-86345
389-ds-base: 389-ds-base: starttls plaintext-buffer retentio -
CVE-2026-86344
389-ds-base: 389-ds-base: unauthenticated worker-thread-pool -
CVE-2026-103884
Keycloak-services: keycloak-services: path traversal in x.50
Same weakness: CWE-416
V. Comments for CVE-2023-1476
No comments yet