{"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"}}}}