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CVE-2023-52654— io_uring/af_unix: disable sending io_uring over sockets

Quick assessment

Affected
Linux Linux
Exploitation
Public or AI PoC available; prioritize validation
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，该漏洞源于允许通过套接字发送io_uring文件。

CVSS 7.8 · High EPSS 0.89% · P59

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 21

VendorProduct Version RangeStatus
Linux Linux 04df9719df1865f6770af9bc7880874af0e594b2< 18824f592aad4124d79751bbc1500ea86ac3ff29 affected
c378c479c5175833bb22ff71974cda47d7b05401< 3fe1ea5f921bf5b71cbfdc4469fb96c05936610e affected
813d8fe5d30388f73a21d3a2bf46b0a1fd72498c< bcedd497b3b4a0be56f3adf7c7542720eced0792 affected
0091bfc81741b8d3aeb3b7ab8636f911b2de6e80< f2f57f51b53be153a522300454ddb3887722fb2c affected
0091bfc81741b8d3aeb3b7ab8636f911b2de6e80< 5a33d385eb36991a91e3dddb189d8679e2aac2be affected
0091bfc81741b8d3aeb3b7ab8636f911b2de6e80< 705318a99a138c29a512a72c3e0043b3cd7f55f4 affected
b4293c01ee0d0ecdd3cb5801e13f62271144667a affected
75e94c7e8859e58aadc15a98cc9704edff47d4f2 affected
… +13 more rows
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I. Basic Information for CVE-2023-52654

Vulnerability Information
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Vulnerability Title
io_uring/af_unix: disable sending io_uring over sockets
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: disable sending io_uring over sockets File reference cycles have caused lots of problems for io_uring in the past, and it still doesn't work exactly right and races with unix_stream_read_generic(). The safest fix would be to completely disallow sending io_uring files via sockets via SCM_RIGHT, so there are no possible cycles invloving registered files and thus rendering SCM accounting on the io_uring side unnecessary.
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，该漏洞源于允许通过套接字发送io_uring文件。
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 04df9719df1865f6770af9bc7880874af0e594b2 ~ 18824f592aad4124d79751bbc1500ea86ac3ff29 -
Linux Linux 6.1 -

II. Public POCs for CVE-2023-52654

# POC Description Source Link Shenlong Link
1 None https://github.com/FoxyProxys/CVE-2023-52654 POC Details
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III. Intelligence Information for CVE-2023-52654

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Other References for CVE-2023-52654 (6)

Same Patch Batch · Linux · 2024-05-09 · 6 CVEs total

CVE-2024-27394 7.8 HIGH tcp: Fix Use-After-Free in tcp_ao_connect_init
CVE-2024-27395 7.8 HIGH net: openvswitch: Fix Use-After-Free in ovs_ct_exit
CVE-2024-27396 7.8 HIGH net: gtp: Fix Use-After-Free in gtp_dellink
CVE-2024-27397 7.8 HIGH netfilter: nf_tables: use timestamp to check for set element timeout
CVE-2024-27393 7.5 HIGH xen-netfront: Add missing skb_mark_for_recycle

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52654

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