{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-26800", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.179Z", "datePublished": "2024-04-04T08:20:28.554Z", "dateUpdated": "2024-12-19T08:47:42.325Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-12-19T08:47:42.325Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: fix use-after-free on failed backlog decryption\n\nWhen the decrypt request goes to the backlog and crypto_aead_decrypt\nreturns -EBUSY, tls_do_decryption will wait until all async\ndecryptions have completed. If one of them fails, tls_do_decryption\nwill return -EBADMSG and tls_decrypt_sg jumps to the error path,\nreleasing all the pages. But the pages have been passed to the async\ncallback, and have already been released by tls_decrypt_done.\n\nThe only true async case is when crypto_aead_decrypt returns\n -EINPROGRESS. With -EBUSY, we already waited so we can tell\ntls_sw_recvmsg that the data is available for immediate copy, but we\nneed to notify tls_decrypt_sg (via the new ->async_done flag) that the\nmemory has already been released."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/tls/tls_sw.c"], "versions": [{"version": "cd1bbca03f3c1d845ce274c0d0a66de8e5929f72", "lessThan": "f2b85a4cc763841843de693bbd7308fe9a2c4c89", "status": "affected", "versionType": "git"}, {"version": "13eca403876bbea3716e82cdfe6f1e6febb38754", "lessThan": "81be85353b0f5a7b660635634b655329b429eefe", "status": "affected", "versionType": "git"}, {"version": "ab6397f072e5097f267abf5cb08a8004e6b17694", "lessThan": "1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1", "status": "affected", "versionType": "git"}, {"version": "8590541473188741055d27b955db0777569438e3", "lessThan": "13114dc5543069f7b97991e3b79937b6da05f5b0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/tls/tls_sw.c"], "versions": [{"version": "6.6.18", "lessThan": "6.6.21", "status": "affected", "versionType": "semver"}, {"version": "6.7.6", "lessThan": "6.7.9", "status": "affected", "versionType": "semver"}]}], "references": [{"url": "https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89"}, {"url": "https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefe"}, {"url": "https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1"}, {"url": "https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0"}], "title": "tls: fix use-after-free on failed backlog decryption", "x_generator": {"engine": "bippy-5f407fcff5a0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-07-31T20:01:08.576744Z", "id": "CVE-2024-26800", "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": "2024-07-31T20:01:16.218Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:14:13.534Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefe", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0", "tags": ["x_transferred"]}]}]}}

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If one of them fails, tls_do_decryption\nwill return -EBADMSG and tls_decrypt_sg jumps to the error path,\nreleasing all the pages. But the pages have been passed to the async\ncallback, and have already been released by tls_decrypt_done.\n\nThe only true async case is when crypto_aead_decrypt returns\n -EINPROGRESS. With -EBUSY, we already waited so we can tell\ntls_sw_recvmsg that the data is available for immediate copy, but we\nneed to notify tls_decrypt_sg (via the new ->async_done flag) that the\nmemory has already been released."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tls: corrige el use-after-free en el descifrado fallido del trabajo pendiente Cuando la solicitud de descifrado va al trabajo pendiente y crypto_aead_decrypt devuelve -EBUSY, tls_do_decryption esperar\u00e1 hasta que se hayan completado todos los descifrados as\u00edncronos. Si uno de ellos falla, tls_do_decryption devolver\u00e1 -EBADMSG y tls_decrypt_sg salta a la ruta del error, liberando todas las p\u00e1ginas. Pero las p\u00e1ginas se pasaron a la devoluci\u00f3n de llamada as\u00edncrona y tls_decrypt_done ya las public\u00f3. El \u00fanico caso as\u00edncrono verdadero es cuando crypto_aead_decrypt devuelve -EINPROGRESS. Con -EBUSY, ya esperamos para poder decirle a tls_sw_recvmsg que los datos est\u00e1n disponibles para copia inmediata, pero debemos notificar a tls_decrypt_sg (a trav\u00e9s del nuevo indicador ->async_done) que la memoria ya ha sido liberada."}], "id": "CVE-2024-26800", "lastModified": "2024-12-20T15:55:10.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-04-04T09:15:09.003", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/13114dc5543069f7b97991e3b79937b6da05f5b0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ac9fb84bc7ecd4bc6428118301d9d864d2a58d1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/81be85353b0f5a7b660635634b655329b429eefe"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f2b85a4cc763841843de693bbd7308fe9a2c4c89"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: tls: fix use-after-free on failed backlog decryption", "id": "2273472", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2273472"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/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:\ntls: fix use-after-free on failed backlog decryption\nWhen the decrypt request goes to the backlog and crypto_aead_decrypt\nreturns -EBUSY, tls_do_decryption will wait until all async\ndecryptions have completed. If one of them fails, tls_do_decryption\nwill return -EBADMSG and tls_decrypt_sg jumps to the error path,\nreleasing all the pages. But the pages have been passed to the async\ncallback, and have already been released by tls_decrypt_done.\nThe only true async case is when crypto_aead_decrypt returns\n-EINPROGRESS. With -EBUSY, we already waited so we can tell\ntls_sw_recvmsg that the data is available for immediate copy, but we\nneed to notify tls_decrypt_sg (via the new ->async_done flag) that the\nmemory has already been released."], "name": "CVE-2024-26800", "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": "2024-04-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26800\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26800\nhttps://lore.kernel.org/linux-cve-announce/2024040403-CVE-2024-26800-0bf4@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 6.6.21, kernel 6.7.9"}