CVE-2025-68255 (GCVE-0-2025-68255)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:44 – Updated: 2025-12-16 14:44
VLAI?
Title
staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing The Supported Rates IE length from an incoming Association Request frame was used directly as the memcpy() length when copying into a fixed-size 16-byte stack buffer (supportRate). A malicious station can advertise an IE length larger than 16 bytes, causing a stack buffer overflow. Clamp ie_len to the buffer size before copying the Supported Rates IE, and correct the bounds check when merging Extended Supported Rates to prevent a second potential overflow. This prevents kernel stack corruption triggered by malformed association requests.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 61871c83259a511980ec2664964cecc69005398b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 25411f5fcf5743131158f337c99c2bbf3f8477f5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e841d8ea722315b781c4fc5bf4f7670fbca88875 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6ef0e1c10455927867cac8f0ed6b49f328f8cf95 (git)
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    Linux Linux Unaffected: 6.12.62 , ≤ 6.12.* (semver)
Unaffected: 6.17.12 , ≤ 6.17.* (semver)
Unaffected: 6.18.1 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)
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            "drivers/staging/rtl8723bs/core/rtw_mlme_ext.c"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing\n\nThe Supported Rates IE length from an incoming Association Request frame\nwas used directly as the memcpy() length when copying into a fixed-size\n16-byte stack buffer (supportRate). A malicious station can advertise an\nIE length larger than 16 bytes, causing a stack buffer overflow.\n\nClamp ie_len to the buffer size before copying the Supported Rates IE,\nand correct the bounds check when merging Extended Supported Rates to\nprevent a second potential overflow.\n\nThis prevents kernel stack corruption triggered by malformed association\nrequests."
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      "providerMetadata": {
        "dateUpdated": "2025-12-16T14:44:58.031Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2025-12-16T14:44:58.031Z",
    "dateReserved": "2025-12-16T13:41:40.267Z",
    "dateUpdated": "2025-12-16T14:44:58.031Z",
    "state": "PUBLISHED"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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