{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-49581", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:21:30.412Z", "datePublished": "2025-02-26T02:23:19.148Z", "dateUpdated": "2026-08-05T08:55:50.751Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:55:50.751Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbe2net: Fix buffer overflow in be_get_module_eeprom\n\nbe_cmd_read_port_transceiver_data assumes that it is given a buffer that\nis at least PAGE_DATA_LEN long, or twice that if the module supports SFF\n8472. However, this is not always the case.\n\nFix this by passing the desired offset and length to\nbe_cmd_read_port_transceiver_data so that we only copy the bytes once." } ], "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 overflow is reached only via local ethtool ioctl/netlink (ETHTOOL_GMODULEEEPROM / ETHTOOL_MSG_MODULE_EEPROM_GET) into be_get_module_eeprom; it is not reachable from network packet processing.\nAC:L - An attacker with CAP_NET_ADMIN can reliably trigger the overflow by requesting a short module-EEPROM read (e.g. length 1 via the netlink fallback), which allocates a too-small kmalloc buffer while the driver still memcpy's PAGE_DATA_LEN bytes.\nPR:L - ETHTOOL_GMODULEEEPROM and the netlink MODULE_EEPROM_GET path require CAP_NET_ADMIN (ns_capable / GENL_UNS_ADMIN_PERM), which is Low rather than full root; the driver's check_privilege(MAX_PRIVILEGES) gate passes on typical PF be2net adapters.\nUI:N - Exploitation is a direct ethtool/netlink call by the attacker; no separate victim action is required.\nS:U - Impact is kernel memory corruption within the same host OS authority; this is not a VM/IOMMU/sandbox boundary escape.\nC:H - The heap out-of-bounds write corrupts adjacent kernel heap objects and can be leveraged for information disclosure primitives, so confidentiality impact is High.\nI:H - A multi-hundred-byte heap overflow write is memory corruption that can enable control-flow hijacking / arbitrary write primitives, so integrity impact is High.\nA:H - Heap corruption from the oversized memcpy can cause kernel oops/panic or allocator crashes, yielding High availability impact." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/emulex/benet/be_cmds.c", "drivers/net/ethernet/emulex/benet/be_cmds.h", "drivers/net/ethernet/emulex/benet/be_ethtool.c" ], "versions": [ { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "fe4473fc7940f14c4a12db873b9729134c212654", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "8ff4f9df73e5c551a72ee6034886c17e8de6596d", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "a8569f76df7ec5b4b51155c57523a0b356db5741", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "665cbe91de2f7c97c51ca8fce39aae26477c1948", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "18043da94c023f3ef09c15017bdb04e8f695ef10", "status": "affected", "versionType": "git" }, { "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "d7241f679a59cfe27f92cb5c6272cb429fb1f7ec", "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/net/ethernet/emulex/benet/be_cmds.c", "drivers/net/ethernet/emulex/benet/be_cmds.h", "drivers/net/ethernet/emulex/benet/be_ethtool.c" ], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.325", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.290", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.254", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.208", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.134", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.58", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18.15", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19", "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": "3.18", "versionEndExcluding": "4.9.325" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "4.14.290" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "4.19.254" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.4.208" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.10.134" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.58" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.18.15" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9" }, { "url": "https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654" }, { "url": "https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d" }, { "url": "https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741" }, { "url": "https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948" }, { "url": "https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f" }, { "url": "https://git.kernel.org/stable/c/18043da94c023f3ef09c15017bdb04e8f695ef10" }, { "url": "https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec" } ], "title": "be2net: Fix buffer overflow in be_get_module_eeprom", "x_generator": { "engine": "bippy-1.2.0" } } } }