Review reviewHigh

CVE-2023-52474

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests hfi1 user SDMA request processing has two bugs that can cause data corruption for user SDMA requests that have multiple payload iovecs where an iovec other than the tail iovec does not run up to the page boundary for the buffer pointed to by that iovec.a Here are the specific bugs: 1. user_sdma_txadd() does not use struct user_sdma_iovec->iov.iov_len. Rather, user_sdma_txadd() will add up to PAGE_SIZE bytes from iovec to the packet, even if some of thos...

CVSS
7.8
EPSS
0.25%
16.5% percentile
CISA KEV
Not listed
Published
2024.02.27
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.25%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix bugs with non-PAGE_SIZE-end multi-iovec user SDMA requests hfi1 user SDMA request processing has two bugs that can cause data corruption for user SDMA requests that have multiple payload iovecs where an iovec other than the tail iovec does not run up to the page boundary for the buffer pointed to by that iovec.a Here are the specific bugs: 1. user_sdma_txadd() does not use struct user_sdma_iovec->iov.iov_len. Rather, user_sdma_txadd() will add up to PAGE_SIZE bytes from iovec to the packet, even if some of thos...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 7724105686e718ac476a6ad3304fea2fbcfcffde < 9c4c6512d7330b743c4ffd18bd999a86ca26db0d, >= 7724105686e718ac476a6ad3304fea2fbcfcffde < a2bd706ab63509793b5cd5065e685b7ef5cba678, >= 7724105686e718ac476a6ad3304fea2fbcfcffde < dce59b5443700fbd0d2433ec6e4d4cf063448844, >= 7724105686e718ac476a6ad3304fea2fbcfcffde < c76cb8f4bdf26d04cfa5485a93ce297dba5e6a80, >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 7e6010f79b58f45b204cf18aa58f4b73c3f30adc, >= 7724105686e718ac476a6ad3304fea2fbcfcffde < 00cbce5cbf88459cd1aa1d60d0f1df15477df127, >= 4.3, >= 4.3.0 < 5.10.180, >= 5.11.0 < 5.15.111, >= 5.16.0 < 6.1.28, >= 6.2.0 < 6.2.15, >= 6.3.0 < 6.3.2
Fixed versions
5.10.180, 5.15.111, 6.1.28, 6.2.15, 6.3.2

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
Not available
CVE-2023-52474 — Linux Linux, linux kernel | SECUFOCUS NOW