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CVE-2023-52656— io_uring: drop any code related to SCM_RIGHTS

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io_uring存在安全漏洞。

CVSS 7.8 · High EPSS 0.31% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 2b188cc1bb857a9d4701ae59aa7768b5124e262e< cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< a6771f343af90a25f3a14911634562bb5621df02 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< d909d381c3152393421403be4b6435f17a2378b4 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< a3812a47a32022ca76bf46ddacdd823dc2aabf8b affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 6fc19b3d8a45ff0e5d50ec8184cee1d5eac1a8ba affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 88c49d9c896143cdc0f77197c4dcf24140375e89 affected
2b188cc1bb857a9d4701ae59aa7768b5124e262e< 6e5e6d274956305f1fc0340522b38f5f5be74bdb affected
5.1 affected
… +8 more rows
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I. Basic Information for CVE-2023-52656

Vulnerability Information
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Vulnerability Title
io_uring: drop any code related to SCM_RIGHTS
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: drop any code related to SCM_RIGHTS This is dead code after we dropped support for passing io_uring fds over SCM_RIGHTS, get rid of it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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io_uring存在安全漏洞。
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 2b188cc1bb857a9d4701ae59aa7768b5124e262e ~ cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3 -
Linux Linux 5.1 -

II. Public POCs for CVE-2023-52656

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III. Intelligence Information for CVE-2023-52656

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Mailing List Discussions for CVE-2023-52656 (1)

Other References for CVE-2023-52656 (6)

Same Patch Batch · Linux · 2024-05-13 · 6 CVEs total

CVE-2024-27398 8.0 HIGH Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout
CVE-2024-27401 7.8 HIGH firewire: nosy: ensure user_length is taken into account when fetching packet contents
CVE-2024-27400 7.8 HIGH drm/amdgpu: once more fix the call oder in amdgpu_ttm_move() v2
CVE-2024-27399 Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout
CVE-2023-52655 usb: aqc111: check packet for fixup for true limit

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52656

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