CVE-2023-52607

powerpc/mm: Fix null-pointer dereference in pgtable_cache_add

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

powerpc/mm: Fix null-pointer dereference in pgtable_cache_add

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: powerpc/mm: corrige la desreferencia del puntero nulo en pgtable_cache_add kasprintf() devuelve un puntero a la memoria asignada dinámicamente que puede ser NULL en caso de falla. Asegúrese de que la asignación se haya realizado correctamente comprobando la validez del puntero.

A possible null-pointer dereference was found in pgtable_cache_add in the Linux kernel. This may cause a crash.

*Credits: N/A

CVSS Scores

CISAv3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-02 CVE Reserved
2024-03-06 CVE Published
2024-03-06 EPSS Updated
2024-12-19 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-395: Use of NullPointerException Catch to Detect NULL Pointer Dereference
CWE-476: NULL Pointer Dereference

CAPEC

References (11)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/21e45a7b08d7cd98d6a53c5fc5111879f2d96611	2024-02-23
https://git.kernel.org/stable/c/f6781add1c311c17eff43e14c786004bbacf901e	2024-02-23
https://git.kernel.org/stable/c/aa28eecb43cac6e20ef14dfc50b8892c1fbcda5b	2024-02-23
https://git.kernel.org/stable/c/ac3ed969a40357b0542d20f096a6d43acdfa6cc7	2024-02-23
https://git.kernel.org/stable/c/d482d61025e303a2bef3733a011b6b740215cfa1	2024-02-05
https://git.kernel.org/stable/c/145febd85c3bcc5c74d87ef9a598fc7d9122d532	2024-02-05
https://git.kernel.org/stable/c/ffd29dc45bc0355393859049f6becddc3ed08f74	2024-02-05
https://git.kernel.org/stable/c/f46c8a75263f97bda13c739ba1c90aced0d3b071	2023-12-13

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2023-52607	2024-06-05
https://bugzilla.redhat.com/show_bug.cgi?id=2268291	2024-06-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.19.307 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.307"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.269 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.269"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.210 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.210"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.149 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.149"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.77 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.77"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.16 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.16"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.7.4 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.4"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8"		en		Affected