{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-21844", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.778Z", "datePublished": "2025-03-12T09:42:00.435Z", "dateUpdated": "2025-03-24T15:41:16.351Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-03-24T15:41:16.351Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Add check for next_buffer in receive_encrypted_standard()\n\nAdd check for the return value of cifs_buf_get() and cifs_small_buf_get()\nin receive_encrypted_standard() to prevent null pointer dereference."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2ops.c"], "versions": [{"version": "b03c8099a738a04d2343547ae6a04e5f0f63d3fa", "lessThan": "f277e479eea3d1aa18bc712abe1d2bf3dece2e30", "status": "affected", "versionType": "git"}, {"version": "858e73ff25639a0cc1f6f8d2587b62c045867e41", "lessThan": "f618aeb6cad2307e48a641379db610abcf593edf", "status": "affected", "versionType": "git"}, {"version": "9f528a8e68327117837b5e28b096f52af4c26a05", "lessThan": "24e8e4523d3071bc5143b0db9127d511489f7b3b", "status": "affected", "versionType": "git"}, {"version": "534733397da26de0303057ce0b93a22bda150365", "lessThan": "9e5d99a4cf2e23c716b44862975548415fae5391", "status": "affected", "versionType": "git"}, {"version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd", "status": "affected", "versionType": "git"}, {"version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "554736b583f529ee159aa95af9a0cbc12b5ffc96", "status": "affected", "versionType": "git"}, {"version": "eec04ea119691e65227a97ce53c0da6b9b74b0b7", "lessThan": "860ca5e50f73c2a1cef7eefc9d39d04e275417f7", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/smb2ops.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.130", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.80", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.17", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.5", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30"}, {"url": "https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf"}, {"url": "https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b"}, {"url": "https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391"}, {"url": "https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd"}, {"url": "https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96"}, {"url": "https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7"}], "title": "smb: client: Add check for next_buffer in receive_encrypted_standard()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "86AE0DF6-343B-48D2-8ABB-4787E7E7DD38", "versionEndExcluding": "6.1.130", "versionStartIncluding": "6.1.69", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B57B2C25-D9FD-43A9-8094-CEAF6874F65A", "versionEndExcluding": "6.6.80", "versionStartIncluding": "6.6.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "15370AEE-6D1C-49C3-8CB7-E889D5F92B6F", "versionEndExcluding": "6.12.17", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "72E69ABB-9015-43A6-87E1-5150383CFFD9", "versionEndExcluding": "6.13.5", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.10.211:*:*:*:*:*:*:*", "matchCriteriaId": "F4984E31-DB63-4A46-BA66-9DE0977CDECB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15.150:*:*:*:*:*:*:*", "matchCriteriaId": "F2FB65FA-EA68-4974-8F77-9817CBD9E418", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*", "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*", "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*", "matchCriteriaId": "66619FB8-0AAF-4166-B2CF-67B24143261D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Add check for next_buffer in receive_encrypted_standard()\n\nAdd check for the return value of cifs_buf_get() and cifs_small_buf_get()\nin receive_encrypted_standard() to prevent null pointer dereference."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: Agregar verificaci\u00f3n para next_buffer en receive_encrypted_standard() Agregar verificaci\u00f3n para el valor de retorno de cifs_buf_get() y cifs_small_buf_get() en receive_encrypted_standard() para evitar la desreferencia del puntero nulo."}], "id": "CVE-2025-21844", "lastModified": "2025-03-13T16:21:00.530", "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": "2025-03-12T10:15:16.677", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: smb: client: Add check for next_buffer in receive_encrypted_standard()", "id": "2351612", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2351612"}, "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"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsmb: client: Add check for next_buffer in receive_encrypted_standard()\nAdd check for the return value of cifs_buf_get() and cifs_small_buf_get()\nin receive_encrypted_standard() to prevent null pointer dereference."], "name": "CVE-2025-21844", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21844\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21844\nhttps://lore.kernel.org/linux-cve-announce/2025031210-CVE-2025-21844-a1cc@gregkh/T"], "threat_severity": "Moderate"}