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CVE-2023-52467— mfd: syscon: Fix null pointer dereference in of_syscon_register()

Quick assessment

Affected
Linux Linux
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of_syscon_register（）存在NULL指针取消引用问题。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1564.004 · NTFS File Attributes

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< 927626a2073887ee30ba00633260d4d203f8e875 affected
e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< c3e3a2144bf50877551138ffce9f7aa6ddfe385b affected
e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< 527e8c5f3d00299822612c495d5adf1f8f43c001 affected
e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< 3ef1130deee98997275904d9bfc37af75e1e906c affected
e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< 7f2c410ac470959b88e03dadd94b7a0b71df7973 affected
e15d7f2b81d2e7d93115d46fa931b366c1cdebc2< 41673c66b3d0c09915698fec5c13b24336f18dd1 affected
5.9 affected
< 5.9 unaffected
… +6 more rows
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I. Basic Information for CVE-2023-52467

Vulnerability Information
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Vulnerability Title
mfd: syscon: Fix null pointer dereference in of_syscon_register()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mfd: syscon: Fix null pointer dereference in of_syscon_register() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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of_syscon_register（）存在NULL指针取消引用问题。
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
Linux Linux e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 ~ 927626a2073887ee30ba00633260d4d203f8e875 -
Linux Linux 5.9 -

II. Public POCs for CVE-2023-52467

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III. Intelligence Information for CVE-2023-52467

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Mailing List Discussions for CVE-2023-52467 (1)

Other References for CVE-2023-52467 (6)

Same Patch Batch · Linux · 2024-02-25 · 11 CVEs total

CVE-2023-52469 7.8 HIGH drivers/amd/pm: fix a use-after-free in kv_parse_power_table
CVE-2023-52465 power: supply: Fix null pointer dereference in smb2_probe
CVE-2023-52468 class: fix use-after-free in class_register()
CVE-2023-52470 drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
CVE-2023-52471 ice: Fix some null pointer dereference issues in ice_ptp.c
CVE-2023-52472 crypto: rsa - add a check for allocation failure
CVE-2023-52473 thermal: core: Fix NULL pointer dereference in zone registration error path
CVE-2021-46904 net: hso: fix null-ptr-deref during tty device unregistration
CVE-2021-46905 net: hso: fix NULL-deref on disconnect regression
CVE-2022-48626 moxart: fix potential use-after-free on remove path

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52467

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