wifi: wilc1000: avoid buffer overflow in WID string configuration
Summary
| CVE | CVE-2025-39952 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-10-04 08:15:48 UTC |
| Updated | 2026-07-30 06:24:00 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: avoid buffer overflow in WID string configuration Fix the following copy overflow warning identified by Smatch checker. drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537) This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-787
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected c5c77ba18ea66aa05441c71e38473efb787705a4 6085291a1a5865d4ad70f0e5812d524ebd5d1711 git | Not specified |
| CNA | Linux | Linux | affected c5c77ba18ea66aa05441c71e38473efb787705a4 2203ef417044b10a8563ade6a17c74183745d72e git | Not specified |
| CNA | Linux | Linux | affected c5c77ba18ea66aa05441c71e38473efb787705a4 ae50f8562306a7ea1cf3c9722f97ee244f974729 git | Not specified |
| CNA | Linux | Linux | affected c5c77ba18ea66aa05441c71e38473efb787705a4 fe9e4d0c39311d0f97b024147a0d155333f388b5 git | Not specified |
| CNA | Linux | Linux | affected 4.2 | Not specified |
| CNA | Linux | Linux | unaffected 4.2 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.108 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.49 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.16.9 6.16.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.