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CVE-2023-52472— crypto: rsa - add a check for allocation failure

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mpi_alloc（）存在NULL指针取消引用问题。

EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 6637e11e4ad22ff03183da0dbd36d65c98b81cf7< 2831f4d3bfa68e64c5f83e96688be779c87b3511 affected
6637e11e4ad22ff03183da0dbd36d65c98b81cf7< 95ad8b6879e2e49d02e3bfc0e1fb46421633fe2a affected
6637e11e4ad22ff03183da0dbd36d65c98b81cf7< d872ca165cb67112f2841ef9c37d51ef7e63d1e4 affected
6.5 affected
< 6.5 unaffected
6.6.14≤ 6.6.* unaffected
6.7.2≤ 6.7.* unaffected
6.8≤ * unaffected
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I. Basic Information for CVE-2023-52472

Vulnerability Information
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Vulnerability Title
crypto: rsa - add a check for allocation failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: rsa - add a check for allocation failure Static checkers insist that the mpi_alloc() allocation can fail so add a check to prevent a NULL dereference. Small allocations like this can't actually fail in current kernels, but adding a check is very simple and makes the static checkers happy.
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mpi_alloc（）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 6637e11e4ad22ff03183da0dbd36d65c98b81cf7 ~ 2831f4d3bfa68e64c5f83e96688be779c87b3511 -
Linux Linux 6.5 -

II. Public POCs for CVE-2023-52472

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III. Intelligence Information for CVE-2023-52472

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Other References for CVE-2023-52472 (2)

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-2023-52467 mfd: syscon: Fix null pointer dereference in of_syscon_register()
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-2023-52473 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-2023-52472

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