{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53082", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:24.979Z", "datePublished": "2024-11-19T17:45:12.233Z", "dateUpdated": "2026-08-05T11:43:31.556Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:43:31.556Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio_net: Add hash_key_length check\n\nAdd hash_key_length check in virtnet_probe() to avoid possible out of\nbound errors when setting/reading the hash key." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The malicious value arrives in the virtio device's configuration space read over the PCI/MMIO transport during driver probe, not over any network or wireless path; the attacker is the local device model (hypervisor backend, vDPA/VDUSE device, or hardware virtio NIC). This matches the AV:L used for the analogous device-supplied-config OOB in CVE-2024-53092.\nAC:L - The device simply advertises rss_max_key_size > 40 and the overflow is deterministic on every probe — no race, no timing window, and the attacker picks the exact overflow length and (via ethtool set_rxfh) the exact bytes written past the array.\nPR:N - The out-of-bounds write and the BUG_ON panic occur automatically inside virtnet_probe()/virtnet_init_default_rss() during driver binding, and virtnet_commit_rss_command() DMAs the out-of-bounds key bytes back to the device on link-up, all with no guest account or credentials required.\nUI:N - Device probe, hotplug, and interface bring-up are driven automatically by the driver core and normal network configuration; no victim action is needed.\nS:U - The out-of-bounds read and write are confined to the guest kernel's own heap and security authority, with no IOMMU, hypervisor, or sandbox boundary crossed by the impact itself.\nC:H - virtnet_get_rxfh() memcpy's vi->rss_key_size bytes from the 40-byte key array to userspace and virtnet_commit_rss_command() hands the same over-long buffer to the device, leaking adjacent virtnet_info heap contents including the indirection_table kernel pointer; once that pointer is overwritten via set_rxfh, get_rxfh reads back arbitrary kernel addresses.\nI:H - netdev_rss_key_fill() writes past key[] at probe and virtnet_set_rxfh()'s memcpy(vi->rss.key, rxfh->key, vi->rss_key_size) writes attacker-chosen bytes over the adjacent indirection_table pointer, after which vi->rss.indirection_table[i] = rxfh->indir[i] is an arbitrary kernel write suitable for control-flow hijacking; on 6.1/6.6 key[] is the last struct member so the overflow lands directly on subsequent virtnet_info fields.\nA:H - netdev_rss_key_fill() contains BUG_ON(len > 52), so any device advertising rss_max_key_size of 53–255 panics the guest kernel outright during probe, and the corrupted indirection_table pointer additionally trips sg_set_buf()'s virt_addr_valid BUG_ON and wild dereferences." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/virtio_net.c" ], "versions": [ { "version": "c7114b1249fa3b5f3a434606ba4cc89c4a27d618", "lessThan": "f3401e3c8d339ddb6ccb2e3d11ad634b7846a806", "status": "affected", "versionType": "git" }, { "version": "c7114b1249fa3b5f3a434606ba4cc89c4a27d618", "lessThan": "af0aa8aecbe8985079232902894cc4cb62795691", "status": "affected", "versionType": "git" }, { "version": "c7114b1249fa3b5f3a434606ba4cc89c4a27d618", "lessThan": "6a18a783b1fa590ad1ed785907263e4b86adcfe2", "status": "affected", "versionType": "git" }, { "version": "c7114b1249fa3b5f3a434606ba4cc89c4a27d618", "lessThan": "3f7d9c1964fcd16d02a8a9d4fd6f6cb60c4cc530", "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/virtio_net.c" ], "versions": [ { "version": "5.18", "status": "affected" }, { "version": "0", "lessThan": "5.18", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.117", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.61", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.8", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "5.18", "versionEndExcluding": "6.1.117" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.6.61" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.11.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.18", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f3401e3c8d339ddb6ccb2e3d11ad634b7846a806" }, { "url": "https://git.kernel.org/stable/c/af0aa8aecbe8985079232902894cc4cb62795691" }, { "url": "https://git.kernel.org/stable/c/6a18a783b1fa590ad1ed785907263e4b86adcfe2" }, { "url": "https://git.kernel.org/stable/c/3f7d9c1964fcd16d02a8a9d4fd6f6cb60c4cc530" } ], "title": "virtio_net: Add hash_key_length check", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-53082", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:11:57.489221Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:17:14.747Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:29:05.254Z" } } ] } }