Review reviewHigh

CVE-2022-49581

Linux Linux, linux kernel

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.

CVSS
7.8
EPSS
0.30%
22.4% percentile
CISA KEV
Not listed
Published
2025.02.26
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.30%
Technical severityCVSS 7.8

Vulnerability overview

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.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= e36edd9d26cf257511548edaf2b7a56eb4fed854 < a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < fe4473fc7940f14c4a12db873b9729134c212654, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < 8ff4f9df73e5c551a72ee6034886c17e8de6596d, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < a8569f76df7ec5b4b51155c57523a0b356db5741, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < 665cbe91de2f7c97c51ca8fce39aae26477c1948, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < 18043da94c023f3ef09c15017bdb04e8f695ef10, >= e36edd9d26cf257511548edaf2b7a56eb4fed854 < d7241f679a59cfe27f92cb5c6272cb429fb1f7ec, >= 3.18, >= 3.18 < 4.9.325, >= 4.10 < 4.14.290, >= 4.15 < 4.19.254, >= 4.20 < 5.4.208, >= 5.5 < 5.10.134, >= 5.11 < 5.15.58, >= 5.16 < 5.18.15, 5.19
Fixed versions
4.9.325, 4.14.290, 4.19.254, 5.4.208, 5.10.134, 5.15.58, 5.18.15

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787