CVE-2026-64315

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"en", "value": "AV:L - The exposed keys are obtained through local kernel-log interfaces such as /dev/kmsg or syslog; network consumers can cause key installation, but the secret is not returned remotely.\nAC:H - The DPAA2 CAAM implementation must be selected and its normally disabled dynamic-debug callsite must have been enabled by boot configuration or an administrator, a condition an unprivileged attacker cannot create.\nPR:L - On systems with dmesg_restrict disabled, an ordinary local user can read the global kernel log and can invoke the affected callbacks through AF_ALG without capabilities.\nUI:N - No victim action is required after the vulnerable logging configuration is active; services and protocol stacks install keys during normal operation.\nS:U - The disclosure and resulting compromise of kernel-protected cryptographic sessions remain within the host kernel's security authority.\nC:H - The dumps contain complete encryption and authentication keys, including RFC4106/RFC4543 salt material, enabling decryption of protected IPsec, SMB, or other traffic.\nI:H - Disclosed AEAD or authentication keys permit valid ciphertexts and authentication tags to be forged, enabling unauthorized modification of protected communications.\nA:H - An AF_ALG caller can trigger the unratelimited dumps continuously, potentially stalling systems using slow debug consoles, while stolen authentication keys can also sustain disruption of protected IPsec or SMB sessions."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/crypto/caam/caamalg_qi2.c"], "versions": [{"version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "1ec775f6a124cce6278ae58b7d1c78a3bc6eef23", "status": "affected", "versionType": "git"}, {"version": "8d818c1055013d355d36188f21c7535687374f6c", "lessThan": "bcf3cf74dfb6981e18b22cbf561f859a0f7faa26", "status": 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use print_hex_dump_devel to guard key hex dumps\n\nUse print_hex_dump_devel() for dumping sensitive key material in\n*_setkey() to avoid leaking secrets at runtime when CONFIG_DYNAMIC_DEBUG\nis enabled."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ncrypto: caam - usar print_hex_dump_devel para proteger los volcados hexadecimales de claves\n\nUsar print_hex_dump_devel() para volcar material de clave sensible en *_setkey() para evitar la fuga de secretos en tiempo de ejecuci\u00f3n cuando CONFIG_DYNAMIC_DEBUG est\u00e1 habilitado."}], "id": "CVE-2026-64315", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-07-25T10:17:12.750", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ec775f6a124cce6278ae58b7d1c78a3bc6eef23"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/59057f5d4e9a195c6dd61695ad3bc4481ddf4f14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6407dc85d0a4306681cf6c9be7f05e05dcb67a37"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8005dc808bcce7d6cc2ae015a3cde1683bee602d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8904b425cfcafe6a820c94b9bdf4b10f7d70f9d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bcf3cf74dfb6981e18b22cbf561f859a0f7faa26"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c8cfe11e48b2a4646fa662fcaa92e14810a28d46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d0b8cafd529b4ec759190c6081f7a76efb563a8f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: crypto: caam - use print_hex_dump_devel to guard key hex dumps", "id": "2507142", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507142"}, "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-215", "details": ["A flaw was found in the Linux kernel's Cryptographic Acceleration and Assurance Module (CAAM) driver. This vulnerability allows for the leakage of sensitive cryptographic key material. When the kernel's dynamic debugging feature is enabled, an attacker could potentially exploit improper handling of key dumps in cryptographic setup functions, leading to the disclosure of confidential information."], "name": "CVE-2026-64315", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64315\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64315\nhttps://lore.kernel.org/linux-cve-announce/2026072510-CVE-2026-64315-6255@gregkh/T"], "threat_severity": "Moderate"}

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