{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-53554", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-04T15:14:15.922Z", "datePublished": "2025-10-04T15:16:59.749Z", "dateUpdated": "2026-08-05T09:14:46.814Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:14:46.814Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()\n\nThe \"exc->key_len\" is a u16 that comes from the user. If it's over\nIW_ENCODING_TOKEN_MAX (64) that could lead to memory corruption." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The only entry point is the local `ioctl(SIOCSIWENCODEEXT)` wireless-extensions path on the ks7010 net_device; no remote or adjacent-network peer data reaches `ks_wlan_set_encode_ext()`. Requires a local process holding an AF_INET/AF_PACKET socket on the host.\nAC:L - Every input to the vulnerable `memcpy` — `key_len`, the key payload, `alg`, `ext_flags` and the key index — is supplied directly by the attacker in a single ioctl, with no race to win and no memory layout the attacker cannot groom beforehand. The `SLP_SLEEP` early-return guard is itself settable by the attacker through the driver's own private ioctl.\nPR:L - `wext_permission_check()` requires CAP_NET_ADMIN, but that is a delegable capability routinely held by non-root network/WiFi management daemons (the wpa_supplicant-style model on the embedded and handheld devices this SDIO driver targets), not full administrative control of the system. Choosing the higher-severity option where the boundary between a confined capability holder and true root is deployment-dependent.\nUI:N - The attacker issues the ioctl directly against an existing ks7010 interface; no victim action, no file to open, nothing to mount. The interface merely has to be present and registered.\nS:U - The overflow corrupts kernel heap adjacent to the net_device private data and stays entirely within the kernel's own security authority. There is no hypervisor, IOMMU, or sandbox boundary crossed.\nC:H - The oversized copy reads far past the 104-byte `extra` slab allocation, pulling adjacent kernel heap contents into `key->key_val`, from where they are shipped to the device via the SME_SET_KEY request. The resulting heap corruption is also leverageable into a general kernel-memory read primitive.\nI:H - An unbounded `__u16` length turns this into an out-of-bounds write of up to ~65471 bytes past a 64-byte buffer inside `netdev_priv()`, with the leading bytes fully attacker-chosen. That is a classic controllable heap overflow suitable for overwriting adjacent objects and hijacking control flow.\nA:H - Overwriting tens of kilobytes of slab memory past `struct wpa_key` reliably destroys neighbouring allocations and slab metadata, producing an oops or panic. Any unsuccessful exploitation attempt still crashes the kernel." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/staging/ks7010/ks_wlan_net.c" ], "versions": [ { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "9496fb96ddeb740dc6b966f4a7d8dfb8b93921c6", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "663fff29fd613e2b0d30c4138157312ba93c4939", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "5373a1aa91b2298f9305794b8270cf9896be96b6", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "caac4b6c15b66feae4d83f602e1e46f124540202", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "baf420e30364ef9efe3e29a5c0e01e612aebf3fe", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "7ae9f55a495077f838bab466411ee6f38574df9b", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "b1b04b56745bc79286c80aa876fabfab1e08ebf1", "status": "affected", "versionType": "git" }, { "version": "b121d84882b97b8668be0b95e9ba50cfd01aa0f1", "lessThan": "5f1c7031e044cb2fba82836d55cc235e2ad619dc", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/staging/ks7010/ks_wlan_net.c" ], "versions": [ { "version": "4.12", "status": "affected" }, { "version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.322", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.291", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.253", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.190", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.124", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.43", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.8", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "4.14.322" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "4.19.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.4.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.10.190" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "5.15.124" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.1.43" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.4.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9496fb96ddeb740dc6b966f4a7d8dfb8b93921c6" }, { "url": "https://git.kernel.org/stable/c/663fff29fd613e2b0d30c4138157312ba93c4939" }, { "url": "https://git.kernel.org/stable/c/5373a1aa91b2298f9305794b8270cf9896be96b6" }, { "url": "https://git.kernel.org/stable/c/caac4b6c15b66feae4d83f602e1e46f124540202" }, { "url": "https://git.kernel.org/stable/c/baf420e30364ef9efe3e29a5c0e01e612aebf3fe" }, { "url": "https://git.kernel.org/stable/c/7ae9f55a495077f838bab466411ee6f38574df9b" }, { "url": "https://git.kernel.org/stable/c/b1b04b56745bc79286c80aa876fabfab1e08ebf1" }, { "url": "https://git.kernel.org/stable/c/5f1c7031e044cb2fba82836d55cc235e2ad619dc" } ], "title": "staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()", "x_generator": { "engine": "bippy-1.2.0" } } } }