CVE-2022-49581

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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": 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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": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "fe4473fc7940f14c4a12db873b9729134c212654", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "8ff4f9df73e5c551a72ee6034886c17e8de6596d", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "a8569f76df7ec5b4b51155c57523a0b356db5741", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "665cbe91de2f7c97c51ca8fce39aae26477c1948", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "18043da94c023f3ef09c15017bdb04e8f695ef10", "versionType": "git"}, {"status": "affected", "version": "e36edd9d26cf257511548edaf2b7a56eb4fed854", "lessThan": "d7241f679a59cfe27f92cb5c6272cb429fb1f7ec", "versionType": "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"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.18"}, {"status": "unaffected", "version": "0", "lessThan": "3.18", "versionType": "semver"}, {"status": "unaffected", "version": "4.9.325", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.290", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.254", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.208", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.134", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.58", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.18.15", "versionType": "semver", "lessThanOrEqual": "5.18.*"}, {"status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "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"], "defaultStatus": "affected"}], "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"}], "x_generator": {"engine": "bippy-1.2.0"}, "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. 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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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: be2net: Se ha corregido el desbordamiento del b\u00fafer en be_get_module_eeprom be_cmd_read_port_transceiver_data asume que se le proporciona un b\u00fafer que tiene al menos una longitud de PAGE_DATA_LEN, o el doble si el m\u00f3dulo admite SFF 8472. Sin embargo, este no siempre es el caso. Corrija esto pasando el desplazamiento y la longitud deseados a be_cmd_read_port_transceiver_data para que solo copiemos los bytes una vez."}], "id": "CVE-2022-49581", "lastModified": "2026-10-15T22:17:24.680", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49581", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:18:08.826441Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:33.703", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/18043da94c023f3ef09c15017bdb04e8f695ef10"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/665cbe91de2f7c97c51ca8fce39aae26477c1948"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8ff4f9df73e5c551a72ee6034886c17e8de6596d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a5a8fc0679a8fd58d47aa2ebcfc5742631f753f9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a8569f76df7ec5b4b51155c57523a0b356db5741"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aba8ff847f4f927ad7a1a1ee4a9f29989a1a728f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d7241f679a59cfe27f92cb5c6272cb429fb1f7ec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fe4473fc7940f14c4a12db873b9729134c212654"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: be2net: Fix buffer overflow in be_get_module_eeprom", "id": "2348269", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348269"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbe2net: Fix buffer overflow in be_get_module_eeprom\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.\nFix this by passing the desired offset and length to\nbe_cmd_read_port_transceiver_data so that we only copy the bytes once."], "name": "CVE-2022-49581", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49581\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49581\nhttps://lore.kernel.org/linux-cve-announce/2025022608-CVE-2022-49581-b9dc@gregkh/T"], "statement": "Red Hat has stack protection mechanisms in place, such as FORTIFY_SOURCE, Position Independent Executables or Stack Smashing Protection.", "threat_severity": "Moderate"}

{"created": "2025-07-13T11:22:16.827693+00:00", "updated": "2025-07-13T11:22:16.827759+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}