{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-42255", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-30T07:40:12.257Z", "datePublished": "2024-08-08T08:49:15.078Z", "dateUpdated": "2026-05-11T20:28:48.348Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:28:48.348Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\n\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n\n[jarkko: adjusted the commit message.]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/char/tpm/tpm2-sessions.c"], "versions": [{"version": "7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d", "lessThan": "b9afbb9a0c734197c59c43610071041044bf1562", "status": "affected", "versionType": "git"}, {"version": "7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d", "lessThan": "7dc357d343f134bf59815ff6098b93503ec8a23b", "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/char/tpm/tpm2-sessions.c"], "versions": [{"version": "6.10", "status": "affected"}, {"version": "0", "lessThan": "6.10", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.1", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11", "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": "6.10", "versionEndExcluding": "6.10.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.10", "versionEndExcluding": "6.11"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562"}, {"url": "https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b"}], "title": "tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-42255", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:13:03.203312Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:30.169Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-42255", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:13:03.203312Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:24.051Z"}}], "cna": {"title": "tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d", "lessThan": "b9afbb9a0c734197c59c43610071041044bf1562", "versionType": "git"}, {"status": "affected", "version": "7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d", "lessThan": "7dc357d343f134bf59815ff6098b93503ec8a23b", "versionType": "git"}], "programFiles": ["drivers/char/tpm/tpm2-sessions.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.10.1", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/char/tpm/tpm2-sessions.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562"}, {"url": "https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\n\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n\n[jarkko: adjusted the commit message.]"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.10.1", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.11", "versionStartIncluding": "6.10"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:25:17.171Z"}}}, "cveMetadata": {"cveId": "CVE-2024-42255", "state": "PUBLISHED", "dateUpdated": "2025-05-04T09:25:17.171Z", "dateReserved": "2024-07-30T07:40:12.257Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-08-08T08:49:15.078Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:-:*:*:*:*:*:*", "matchCriteriaId": "9EA80796-744E-45F5-8632-2AB4F7889FCD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*", "matchCriteriaId": "2EBB4392-5FA6-4DA9-9772-8F9C750109FA", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*", "matchCriteriaId": "331C2F14-12C7-45D5-893D-8C52EE38EA10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*", "matchCriteriaId": "3173713D-909A-4DD3-9DD4-1E171EB057EE", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:*", "matchCriteriaId": "79F18AFA-40F7-43F0-BA30-7BDB65F918B9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc5:*:*:*:*:*:*", "matchCriteriaId": "BD973AA4-A789-49BD-8D57-B2846935D3C7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc6:*:*:*:*:*:*", "matchCriteriaId": "8F3E9E0C-AC3E-4967-AF80-6483E8AB0078", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.10:rc7:*:*:*:*:*:*", "matchCriteriaId": "11AF4CB9-F697-4EA4-8903-8F9417EFDA8E", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\n\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n\n[jarkko: adjusted the commit message.]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tpm: use autenticaci\u00f3n solo despu\u00e9s de la verificaci\u00f3n NULL en tpm_buf_check_hmac_response() Desreferenciar la autenticaci\u00f3n despu\u00e9s de la verificaci\u00f3n NULL en tpm_buf_check_hmac_response(). De lo contrario, a menos que se haya llamado a tpm2_sessions_init(), una llamada puede causar una desreferencia NULL, cuando TCG_TPM2_HMAC est\u00e1 habilitado. [jarkko: ajust\u00f3 el mensaje de confirmaci\u00f3n.]"}], "id": "CVE-2024-42255", "lastModified": "2024-09-06T13:41:30.843", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-08-08T09:15:08.470", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: tpm: Use auth only after NULL check in tpm_buf_check_hmac_response()", "id": "2303636", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2303636"}, "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:\ntpm: Use auth only after NULL check in tpm_buf_check_hmac_response()\nDereference auth after NULL check in tpm_buf_check_hmac_response().\nOtherwise, unless tpm2_sessions_init() was called, a call can cause NULL\ndereference, when TCG_TPM2_HMAC is enabled.\n[jarkko: adjusted the commit message.]"], "name": "CVE-2024-42255", "package_state": [{"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-08-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42255\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42255\nhttps://lore.kernel.org/linux-cve-announce/2024080819-CVE-2024-42255-b73c@gregkh/T"], "threat_severity": "Low"}

{}