What’s Vulnerable › Vulnerabilities

CVE-2023-1032

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-01-08 · updated 2026-06-17
• Weakness: CWE-415

Description

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.

Affected products

• Canonical Ubuntu Linux: 22.04, 22.10
• Linux kernel: from 5.19 before 6.3; 6.3-rc1 — fixed in 6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.3. Check the vendor advisory for mitigations.

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1032
• https://ubuntu.com/security/notices/USN-5977-1
• https://ubuntu.com/security/notices/USN-6024-1
• https://ubuntu.com/security/notices/USN-6033-1
• https://www.openwall.com/lists/oss-security/2023/03/13/2
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1032
• https://ubuntu.com/security/notices/USN-5977-1
• https://ubuntu.com/security/notices/USN-6024-1
• https://ubuntu.com/security/notices/USN-6033-1
• https://www.openwall.com/lists/oss-security/2023/03/13/2

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