Vulnerability in Linux

CVE-2023-52654

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-52654: held from 0.009 to 0.009.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

  • Linux — versions 75e94c7e8859e58aadc15a98cc9704edff47d4f2, b4293c01ee0d0ecdd3cb5801e13f62271144667a, c378c479c5175833bb22ff71974cda47d7b05401
  • Linux Kernel — versions 6.7

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-52654?
CVE-2023-52654 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2024-05-14.
How severe is CVE-2023-52654?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-52654 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.