CVE-2022-49023: linux kernel Buffer Overflow — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix buffer overflow in elem comparison For vendor elements, the code here assumes that 5 octets are present without checking. Since the element itself is already checked to fit, we only need to check the length.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.1 — 5.4.226
linux	linux_kernel	5.5 — 5.10.158
linux	linux_kernel	5.11 — 5.15.82
linux	linux_kernel	5.16 — 6.0.12
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/391cb872553627bdcf236c03ee7d5adb275e37e1 https://git.kernel.org/stable/c/88a6fe3707888bd1893e9741157a7035c4159ab6 https://git.kernel.org/stable/c/9e6b79a3cd17620d467311b30d56f2648f6880aa https://git.kernel.org/stable/c/9f16b5c82a025cd4c864737409234ddc44fb166a https://git.kernel.org/stable/c/f5c2ec288a865dbe3706b09bed12302e9f6d696b

Frequently Asked Questions

What is CVE-2022-49023? +

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix buffer overflow in elem comparison For vendor elements, the code here assumes that 5 octets are present without checking. Since the element itself is already checked to fit, we only need to check the length. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49023? +

CVE-2022-49023 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2022-49023? +

CVE-2022-49023 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-2022-49023? +

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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CVE-2022-49023