{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68724", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:30:51.027Z", "datePublished": "2025-12-24T10:33:08.932Z", "dateUpdated": "2026-08-05T12:11:08.219Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:11:08.219Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id\n\nUse check_add_overflow() to guard against potential integer overflows\nwhen adding the binary blob lengths and the size of an asymmetric_key_id\nstructure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a\npossible buffer overflow when copying data from potentially malicious\nX.509 certificate fields that can be arbitrarily large, such as ASN.1\nINTEGER serial numbers, issuer names, etc." } ], "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 vulnerable X.509 parsing path is reached through the local add_key syscall and related local PKCS#7 consumers, not directly through network packet processing.\nAC:L - The overflow is deterministic from attacker-controlled certificate field lengths and requires no race, victim-controlled state, or unpredictable condition.\nPR:L - An ordinary unprivileged user can submit an asymmetric key to a writable process or session keyring without capabilities. Parsing occurs before certificate trust and keyring restriction checks.\nUI:N - The attacker directly invokes the keyring interface with the crafted certificate, requiring no action by another user.\nS:U - Exploitation compromises the kernel within the same host security authority and does not inherently cross a VM, IOMMU, or other distinct security boundary.\nC:H - The undersized allocation followed by oversized memcpy operations can corrupt kernel heap objects and potentially enable kernel code execution with arbitrary memory disclosure.\nI:H - The heap out-of-bounds writes can overwrite adjacent objects, function pointers, or credentials, potentially enabling arbitrary kernel writes and control-flow hijacking.\nA:H - The overflow can immediately produce an oops or kernel panic and can be triggered repeatedly by an unprivileged local attacker." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/asymmetric_keys/asymmetric_type.c" ], "versions": [ { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "60a7be5ee74408147e439164ac067e418ca74bb4", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "c13c6e9de91d7f1dd7df756b1fa5a1f968839d76", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "dfc1613961828745165aec6552c3818fa14ab725", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "c73be4f51eed98fa0c7c189db8f279e1c86bfbf7", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "6af753ac5205115e6c310c8c4236c01b59a1c44f", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "b7090a5c153105b9fd221a5a81459ee8cd5babd6", "status": "affected", "versionType": "git" }, { "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7", "lessThan": "df0845cf447ae1556c3440b8b155de0926cbaa56", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "crypto/asymmetric_keys/asymmetric_type.c" ], "versions": [ { "version": "3.18", "status": "affected" }, { "version": "0", "lessThan": "3.18", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.63", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "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": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.12.63" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.17.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.18.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.18", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/60a7be5ee74408147e439164ac067e418ca74bb4" }, { "url": "https://git.kernel.org/stable/c/c13c6e9de91d7f1dd7df756b1fa5a1f968839d76" }, { "url": "https://git.kernel.org/stable/c/dfc1613961828745165aec6552c3818fa14ab725" }, { "url": "https://git.kernel.org/stable/c/5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c" }, { "url": "https://git.kernel.org/stable/c/c73be4f51eed98fa0c7c189db8f279e1c86bfbf7" }, { "url": "https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f" }, { "url": "https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6" }, { "url": "https://git.kernel.org/stable/c/df0845cf447ae1556c3440b8b155de0926cbaa56" } ], "title": "crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-16T19:22:49.497362Z", "id": "CVE-2025-68724", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "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": "2026-06-16T19:22:59.107Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:44:06.547Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html" } ] } ] } }