CVE-2022-49581: linux kernel Memory Corruption — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in be_get_module_eeprom be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case. Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only copy the bytes once.

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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-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
linux	linux_kernel	3.18 — 4.9.325
linux	linux_kernel	4.10 — 4.14.290
linux	linux_kernel	4.15 — 4.19.254
linux	linux_kernel	4.20 — 5.4.208
linux	linux_kernel	5.5 — 5.10.134
linux	linux_kernel	5.11 — 5.15.58
linux	linux_kernel	5.16 — 5.18.15
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/18043da94c023f3ef09c15017bdb04e8f695ef10 https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948 https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9 https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741 https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654

Frequently Asked Questions

What is CVE-2022-49581? +

In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in be_get_module_eeprom be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case. Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only copy the bytes once. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49581? +

CVE-2022-49581 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-2022-49581? +

CVE-2022-49581 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-2022-49581? +

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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