{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53570", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-04T15:14:15.925Z", "datePublished": "2025-10-04T15:17:11.525Z", "dateUpdated": "2025-10-04T15:17:11.525Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-04T15:17:11.525Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix integer overflow in nl80211_parse_mbssid_elems()\n\nnl80211_parse_mbssid_elems() uses a u8 variable num_elems to count the\nnumber of MBSSID elements in the nested netlink attribute attrs, which can\nlead to an integer overflow if a user of the nl80211 interface specifies\n256 or more elements in the corresponding attribute in userspace. The\ninteger overflow can lead to a heap buffer overflow as num_elems determines\nthe size of the trailing array in elems, and this array is thereafter\nwritten to for each element in attrs.\n\nNote that this vulnerability only affects devices with the\nwiphy->mbssid_max_interfaces member set for the wireless physical device\nstruct in the device driver, and can only be triggered by a process with\nCAP_NET_ADMIN capabilities.\n\nFix this by checking for a maximum of 255 elements in attrs."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/nl80211.c"], "versions": [{"version": "dc1e3cb8da8b414b37208b2fb6755fef8122504b", "lessThan": "e642eb67b8c10dcce758d549cc81564116e0fa49", "status": "affected", "versionType": "git"}, {"version": "dc1e3cb8da8b414b37208b2fb6755fef8122504b", "lessThan": "7d09f9f255a5f78578deba5454923072bb53b16c", "status": "affected", "versionType": "git"}, {"version": "dc1e3cb8da8b414b37208b2fb6755fef8122504b", "lessThan": "6311071a056272e1e761de8d0305e87cc566f734", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/wireless/nl80211.c"], "versions": [{"version": "5.16", "status": "affected"}, {"version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.46", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.11", "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": "5.16", "versionEndExcluding": "6.1.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.4.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e642eb67b8c10dcce758d549cc81564116e0fa49"}, {"url": "https://git.kernel.org/stable/c/7d09f9f255a5f78578deba5454923072bb53b16c"}, {"url": "https://git.kernel.org/stable/c/6311071a056272e1e761de8d0305e87cc566f734"}], "title": "wifi: nl80211: fix integer overflow in nl80211_parse_mbssid_elems()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: nl80211: fix integer overflow in nl80211_parse_mbssid_elems()\n\nnl80211_parse_mbssid_elems() uses a u8 variable num_elems to count the\nnumber of MBSSID elements in the nested netlink attribute attrs, which can\nlead to an integer overflow if a user of the nl80211 interface specifies\n256 or more elements in the corresponding attribute in userspace. The\ninteger overflow can lead to a heap buffer overflow as num_elems determines\nthe size of the trailing array in elems, and this array is thereafter\nwritten to for each element in attrs.\n\nNote that this vulnerability only affects devices with the\nwiphy->mbssid_max_interfaces member set for the wireless physical device\nstruct in the device driver, and can only be triggered by a process with\nCAP_NET_ADMIN capabilities.\n\nFix this by checking for a maximum of 255 elements in attrs."}], "id": "CVE-2023-53570", "lastModified": "2025-10-04T16:15:52.577", "metrics": {}, "published": "2025-10-04T16:15:52.577", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6311071a056272e1e761de8d0305e87cc566f734"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d09f9f255a5f78578deba5454923072bb53b16c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e642eb67b8c10dcce758d549cc81564116e0fa49"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}