{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53599", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-04T15:40:38.479Z", "datePublished": "2025-10-04T15:44:11.096Z", "dateUpdated": "2026-05-11T19:48:16.675Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:48:16.675Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: af_alg - Fix missing initialisation affecting gcm-aes-s390\n\nFix af_alg_alloc_areq() to initialise areq->first_rsgl.sgl.sgt.sgl to point\nto the scatterlist array in areq->first_rsgl.sgl.sgl.\n\nWithout this, the gcm-aes-s390 driver will oops when it tries to do\ngcm_walk_start() on req->dst because req->dst is set to the value of\nareq->first_rsgl.sgl.sgl by _aead_recvmsg() calling\naead_request_set_crypt().\n\nThe problem comes if an empty ciphertext is passed: the loop in\naf_alg_get_rsgl() just passes straight out and doesn't set areq->first_rsgl\nup.\n\nThis isn't a problem on x86_64 using gcmaes_crypt_by_sg() because, as far\nas I can tell, that ignores req->dst and only uses req->src[*].\n\n[*] Is this a bug in aesni-intel_glue.c?\n\nThe s390x oops looks something like:\n\n Unable to handle kernel pointer dereference in virtual kernel address space\n Failing address: 0000000a00000000 TEID: 0000000a00000803\n Fault in home space mode while using kernel ASCE.\n AS:00000000a43a0007 R3:0000000000000024\n Oops: 003b ilc:2 [#1] SMP\n ...\n Call Trace:\n [<000003ff7fc3d47e>] gcm_walk_start+0x16/0x28 [aes_s390]\n [<00000000a2a342f2>] crypto_aead_decrypt+0x9a/0xb8\n [<00000000a2a60888>] aead_recvmsg+0x478/0x698\n [<00000000a2e519a0>] sock_recvmsg+0x70/0xb0\n [<00000000a2e51a56>] sock_read_iter+0x76/0xa0\n [<00000000a273e066>] vfs_read+0x26e/0x2a8\n [<00000000a273e8c4>] ksys_read+0xbc/0x100\n [<00000000a311d808>] __do_syscall+0x1d0/0x1f8\n [<00000000a312ff30>] system_call+0x70/0x98\n Last Breaking-Event-Address:\n [<000003ff7fc3e6b4>] gcm_aes_crypt+0x104/0xa68 [aes_s390]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["crypto/af_alg.c"], "versions": [{"version": "c1abe6f570aff4b6d396dc551e60570d2f50bd79", "lessThan": "2c9d205040d7c0eaccc473917f9b0bb0a923e440", "status": "affected", "versionType": "git"}, {"version": "c1abe6f570aff4b6d396dc551e60570d2f50bd79", "lessThan": "6a4b8aa0a916b39a39175584c07222434fa6c6ef", "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/af_alg.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.3", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "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": "6.5", "versionEndExcluding": "6.5.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2c9d205040d7c0eaccc473917f9b0bb0a923e440"}, {"url": "https://git.kernel.org/stable/c/6a4b8aa0a916b39a39175584c07222434fa6c6ef"}], "title": "crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "880C803A-BEAE-4DA0-8A59-AC023F7B4EE3", "versionEndExcluding": "6.5.3", "versionStartIncluding": "6.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: af_alg - Fix missing initialisation affecting gcm-aes-s390\n\nFix af_alg_alloc_areq() to initialise areq->first_rsgl.sgl.sgt.sgl to point\nto the scatterlist array in areq->first_rsgl.sgl.sgl.\n\nWithout this, the gcm-aes-s390 driver will oops when it tries to do\ngcm_walk_start() on req->dst because req->dst is set to the value of\nareq->first_rsgl.sgl.sgl by _aead_recvmsg() calling\naead_request_set_crypt().\n\nThe problem comes if an empty ciphertext is passed: the loop in\naf_alg_get_rsgl() just passes straight out and doesn't set areq->first_rsgl\nup.\n\nThis isn't a problem on x86_64 using gcmaes_crypt_by_sg() because, as far\nas I can tell, that ignores req->dst and only uses req->src[*].\n\n[*] Is this a bug in aesni-intel_glue.c?\n\nThe s390x oops looks something like:\n\n Unable to handle kernel pointer dereference in virtual kernel address space\n Failing address: 0000000a00000000 TEID: 0000000a00000803\n Fault in home space mode while using kernel ASCE.\n AS:00000000a43a0007 R3:0000000000000024\n Oops: 003b ilc:2 [#1] SMP\n ...\n Call Trace:\n [<000003ff7fc3d47e>] gcm_walk_start+0x16/0x28 [aes_s390]\n [<00000000a2a342f2>] crypto_aead_decrypt+0x9a/0xb8\n [<00000000a2a60888>] aead_recvmsg+0x478/0x698\n [<00000000a2e519a0>] sock_recvmsg+0x70/0xb0\n [<00000000a2e51a56>] sock_read_iter+0x76/0xa0\n [<00000000a273e066>] vfs_read+0x26e/0x2a8\n [<00000000a273e8c4>] ksys_read+0xbc/0x100\n [<00000000a311d808>] __do_syscall+0x1d0/0x1f8\n [<00000000a312ff30>] system_call+0x70/0x98\n Last Breaking-Event-Address:\n [<000003ff7fc3e6b4>] gcm_aes_crypt+0x104/0xa68 [aes_s390]"}], "id": "CVE-2023-53599", "lastModified": "2026-03-23T18:23:52.000", "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": "2025-10-04T16:15:56.497", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2c9d205040d7c0eaccc473917f9b0bb0a923e440"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6a4b8aa0a916b39a39175584c07222434fa6c6ef"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390", "id": "2401566", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2401566"}, "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:\ncrypto: af_alg - Fix missing initialisation affecting gcm-aes-s390\nFix af_alg_alloc_areq() to initialise areq->first_rsgl.sgl.sgt.sgl to point\nto the scatterlist array in areq->first_rsgl.sgl.sgl.\nWithout this, the gcm-aes-s390 driver will oops when it tries to do\ngcm_walk_start() on req->dst because req->dst is set to the value of\nareq->first_rsgl.sgl.sgl by _aead_recvmsg() calling\naead_request_set_crypt().\nThe problem comes if an empty ciphertext is passed: the loop in\naf_alg_get_rsgl() just passes straight out and doesn't set areq->first_rsgl\nup.\nThis isn't a problem on x86_64 using gcmaes_crypt_by_sg() because, as far\nas I can tell, that ignores req->dst and only uses req->src[*].\n[*] Is this a bug in aesni-intel_glue.c?\nThe s390x oops looks something like:\nUnable to handle kernel pointer dereference in virtual kernel address space\nFailing address: 0000000a00000000 TEID: 0000000a00000803\nFault in home space mode while using kernel ASCE.\nAS:00000000a43a0007 R3:0000000000000024\nOops: 003b ilc:2 [#1] SMP\n...\nCall Trace:\n[<000003ff7fc3d47e>] gcm_walk_start+0x16/0x28 [aes_s390]\n[<00000000a2a342f2>] crypto_aead_decrypt+0x9a/0xb8\n[<00000000a2a60888>] aead_recvmsg+0x478/0x698\n[<00000000a2e519a0>] sock_recvmsg+0x70/0xb0\n[<00000000a2e51a56>] sock_read_iter+0x76/0xa0\n[<00000000a273e066>] vfs_read+0x26e/0x2a8\n[<00000000a273e8c4>] ksys_read+0xbc/0x100\n[<00000000a311d808>] __do_syscall+0x1d0/0x1f8\n[<00000000a312ff30>] system_call+0x70/0x98\nLast Breaking-Event-Address:\n[<000003ff7fc3e6b4>] gcm_aes_crypt+0x104/0xa68 [aes_s390]"], "name": "CVE-2023-53599", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53599\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53599\nhttps://lore.kernel.org/linux-cve-announce/2025100430-CVE-2023-53599-2a93@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-06T14:40:28.543277+00:00", "updated": "2025-10-06T14:40:28.543356+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}