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Fencer Vulns
medium 4.7

CVE-2023-1032 json

The Linux kernel io_uring IORING_OP_SOCKET operation contained a double free in function __sys_socket_file() in file net/socket.c.

published 2024-01-08 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23324

cvss
4.7
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

The Linux kernel io_uring IORING_OP_SOCKET operation contained a double free in function __sys_socket_file() in file net/socket.c. This issue was introduced in da214a475f8bd1d3e9e7a19ddfeb4d1617551bab and fixed in 649c15c7691e9b13cbe9bf6c65c365350e056067.

Patch / fix

  • The Linux Kernel Organization linux 6.3~rc2
  • linux Debian 14, Debian 13, Debian 12 6.1.20-1

debian advisories DEBIAN-CVE-2023-1032

  • linux-oem-6.0 Ubuntu 22.04 LTS 6.0.0-1013.13
  • linux-oem-6.1 Ubuntu 22.04 LTS 6.1.0-1009.9
  • linux-aws-5.19 Ubuntu 22.04 LTS 5.19.0-1023.24~22.04.1
  • linux-gcp-5.19 Ubuntu 22.04 LTS 5.19.0-1021.23~22.04.1
  • linux-hwe-5.19 Ubuntu 22.04 LTS 5.19.0-40.41~22.04.1
  • linux-azure-5.19 Ubuntu 22.04 LTS 5.19.0-1023.24~22.04.1
  • linux-riscv-5.19 Ubuntu 22.04 LTS 5.19.0-1016.17~22.04.1
  • linux-starfive-5.19 Ubuntu 22.04 LTS 5.19.0-1015.17~22.04.1

ubuntu advisories UBUNTU-CVE-2023-1032

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-1032 updated cvss 5.5

kernel: io_uring IORING_OP_SOCKET double free

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • The Linux Kernel Organization linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.