CVE-2022-48934: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac() ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX) inclusive. So NFP_MAX_MAC_INDEX (0xff) is a valid id. In order for the error handling path to work correctly, the 'invalid' value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range, inclusive. So set it to -1.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.1 — 5.4.182
linux	linux_kernel	5.5 — 5.10.103
linux	linux_kernel	5.11 — 5.15.26
linux	linux_kernel	5.16 — 5.16.12

References

Advisories & Patches

https://git.kernel.org/stable/c/3a14d0888eb4b0045884126acc69abfb7b87814d https://git.kernel.org/stable/c/4086d2433576baf85f0e538511df97c8101e0a10 https://git.kernel.org/stable/c/5ad5886f85b6bd893e3ed19013765fb0c243c069 https://git.kernel.org/stable/c/9d8097caa73200710d52b9f4d9f430548f46a900 https://git.kernel.org/stable/c/af4bc921d39dffdb83076e0a7eed1321242b7d87

Frequently Asked Questions

What is CVE-2022-48934? +

In the Linux kernel, the following vulnerability has been resolved: nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac() ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX) inclusive. So NFP_MAX_MAC_INDEX (0xff) is a valid id. In order for the error handling path to work correctly, the 'invalid' value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range, inclusive. So set it to -1. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48934? +

CVE-2022-48934 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-48934? +

CVE-2022-48934 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-48934? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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