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7.8
CVSSv3

CVE-2022-24122

Published: 29/01/2022 Updated: 28/12/2023
CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 614
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Summary

kernel/ucount.c in the Linux kernel 5.14 up to and including 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.

Vulnerability Trend

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linux linux kernel

netapp h410c firmware -

netapp h300s firmware -

netapp h500s firmware -

netapp h700s firmware -

netapp h300e firmware -

netapp h500e firmware -

netapp h700e firmware -

netapp h410s firmware -

fedoraproject fedora 34

fedoraproject fedora 35

Vendor Advisories

Ubuntu Security Notice: USN-5278-1: Linux kernel (OEM) vulnerabilities
Several security issues were fixed in the Linux kernel ...
Red Hat: CVE-2022-24122
kernel/ucountc in the Linux kernel 514 through 5164, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace ...

Mailing Lists

Full Disclosure: Re: Linux kernel: use-after-free of user namespace on shm and mqueue destruction
Hi, On Sat, Jan 29, 2022 at 08:07:27PM +0100, Mathias Krause wrote: This issue has been assigned CVE-2022-24122 by MITRE via cveformmitreorg/ Regards, Salvatore ...

Github Repositories

https://github.com/meowmeowxw/CVE-2022-24122

CVE-2022-24122 Proof of Concept

CVE-2022-24122 Simple Denial of Service using CVE-2022-24122 It works with 1 core system and it has ~80% probability of success with 2 cores

References

CWE-416https://www.openwall.com/lists/oss-security/2022/01/29/1https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5https://security.netapp.com/advisory/ntap-20220221-0001/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B/https://nvd.nist.govhttps://ubuntu.com/security/notices/USN-5278-1
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-37316firmwareCVE-2024-30078CVE-2024-5995remote code executionlogic flawCVE-2024-20693CVE-2024-37315CVE-2024-5464
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