#VU90841 NULL pointer dereference in Linux kernel - CVE-2023-52607
Vulnerability identifier: #VU90841
Vulnerability risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the pgtable_cache_add() function in arch/powerpc/mm/init-common.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 4.19 - 4.19.306, 5.4 - 5.4.268, 5.10 - 5.10.209, 5.15 - 5.15.148, 6.1 - 6.1.76, 6.6 - 6.6.15, 6.7 - 6.7.3, 6.8 rc1 - 6.8 rc5
External links
https://git.kernel.org/stable/c/21e45a7b08d7cd98d6a53c5fc5111879f2d96611
https://git.kernel.org/stable/c/f6781add1c311c17eff43e14c786004bbacf901e
https://git.kernel.org/stable/c/aa28eecb43cac6e20ef14dfc50b8892c1fbcda5b
https://git.kernel.org/stable/c/ac3ed969a40357b0542d20f096a6d43acdfa6cc7
https://git.kernel.org/stable/c/d482d61025e303a2bef3733a011b6b740215cfa1
https://git.kernel.org/stable/c/145febd85c3bcc5c74d87ef9a598fc7d9122d532
https://git.kernel.org/stable/c/ffd29dc45bc0355393859049f6becddc3ed08f74
https://git.kernel.org/stable/c/f46c8a75263f97bda13c739ba1c90aced0d3b071
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.307
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.269
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
