{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48654", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:44:28.317Z", "datePublished": "2024-04-28T13:00:56.564Z", "dateUpdated": "2026-08-05T08:51:38.661Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:51:38.661Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()\n\nnf_osf_find() incorrectly returns true on mismatch, this leads to\ncopying uninitialized memory area in nft_osf which can be used to leak\nstale kernel stack data to userspace." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerable path is reached by configuring an nftables osf expression via NETLINK_NETFILTER and then evaluating it on a TCP SYN; nftables/netlink is Local per kernel guidance, not a remote packet-only bug.\nAC:L - An attacker can create an osf rule with no matching fingerprints (empty global finger list) and send a local TCP SYN so nf_osf_find() always takes the bogus-true path; no race or attacker-uncontrollable condition is required.\nPR:L - nfnetlink gates on CAP_NET_ADMIN via netlink_net_capable() against the socket’s network-namespace user_ns, which an unprivileged user obtains with unshare -Urn, so this is Low rather than real-root High.\nUI:N - The attacker configures the osf expression and triggers evaluation with their own TCP SYN; no separate victim action is required.\nS:U - Impact stays within the local host kernel authority (stack/pointer disclosure or oops); this is not a VM escape, IOMMU bypass, or other cross-boundary effect.\nC:H - On mismatch, uninitialized const char * genre/version are passed to strscpy/snprintf and up to NFT_OSF_MAXGENRELEN bytes from the wild addresses are copied into an nft register visible to userspace, enabling kernel memory disclosure.\nI:N - The bug only reads through uninitialized pointers and copies into the attacker-controlled nft register path; there is no OOB write, UAF, or control-flow hijack primitive.\nA:H - Dereferencing uninitialized genre/version pointers commonly faults on unmapped addresses and oopses/panics the kernel, which is High availability impact under kernel CVSS guidance." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/netfilter/nfnetlink_osf.c" ], "versions": [ { "version": "22c7652cdaa8cd33ce78bacceb4e826a3f795873", "lessThan": "721ea8ac063d70c2078c4e762212705de6151764", "status": "affected", "versionType": "git" }, { "version": "22c7652cdaa8cd33ce78bacceb4e826a3f795873", "lessThan": "5d75fef3e61e797fab5c3fbba88caa74ab92ad47", "status": "affected", "versionType": "git" }, { "version": "22c7652cdaa8cd33ce78bacceb4e826a3f795873", "lessThan": "816eab147e5c6f6621922b8515ad9010ceb1735e", "status": "affected", "versionType": "git" }, { "version": "22c7652cdaa8cd33ce78bacceb4e826a3f795873", "lessThan": "633c81c0449663f57d4138326d036dc6cfad674e", "status": "affected", "versionType": "git" }, { "version": "22c7652cdaa8cd33ce78bacceb4e826a3f795873", "lessThan": "559c36c5a8d730c49ef805a72b213d3bba155cc8", "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/netfilter/nfnetlink_osf.c" ], "versions": [ { "version": "5.2", "status": "affected" }, { "version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.215", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.146", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.71", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.19.12", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0", "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": "5.2", "versionEndExcluding": "5.4.215" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.10.146" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.15.71" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "5.19.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.0" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764" }, { "url": "https://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47" }, { "url": "https://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e" }, { "url": "https://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e" }, { "url": "https://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8" } ], "title": "netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "lang": "en", "description": "CWE-noinfo Not enough information" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-07-16T20:35:56.717348Z", "id": "CVE-2022-48654", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-30T15:43:45.122Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:17:55.613Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8", "tags": [ "x_transferred" ] } ] } ] } }