Review reviewHigh

CVE-2023-53729

Linux

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding.

CVSS
7.8
EPSS
0.14%
4.05% percentile
CISA KEV
Not listed
Published
2025.10.22
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: qmi_encdec: Restrict string length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding.

Affected product and versions

Product
Linux
Affected versions
>= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < 6b58859e7c4ac357517a59f0801e8ce1b58a8ee2, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < 64c5e916fabe5ef7bef0210b8a59fa8941ee1b8e, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < 2ccab9f82772ead618689d17dbc6950d6bd1e741, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < b2f39b813d1eed4a522428d1e6acd7dfe9b81579, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < f6250ecb7fbb934b89539e7e2ba6c1d8555c0975, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < 22ee7c9c7f381be178b4457bc54530002e08e938, >= 9b8a11e82615274d4133aab3cf5aa1c59191f0a2 < 8d207400fd6b79c92aeb2f33bb79f62dff904ea2, >= 4.16
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux 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-2023-53729 — Linux | SECUFOCUS NOW