CVE-2023-52988

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7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable path runs only during VIA HD-audio codec probe (`hda_codec_driver_probe` \u2192 `patch_vt1718S`/`patch_vt2002P`/`patch_vt1812`/`patch_vt3476` \u2192 `add_secret_dac_path`), reached via local driver bind/module autoload on systems with affected VIA codecs\u2014not via network or remote peer input.\nAC:L - An attacker can force `snd_hda_get_connections()` to fail with `-ENOMEM` by exhausting memory before codec bind/autoload (same pattern as CVE-2023-52999), and VIA codecs with analog DAC widgets then hit the `conn[nums++]=nid` path deterministically; no uncontrollable race is required.\nPR:L - Direct sysfs rebind needs root, but an unprivileged audio-capable user can trigger ALSA lazy module autoload (`/dev/aloadC*` \u2192 `request_module` of the VIA codec driver) as in CVE-2025-68205, and a local account is enough to leverage boot-time probe corruption.\nUI:N - Codec probe is system-driven (boot bind or attacker-initiated autoload); no separate victim must open a file, mount media, or otherwise interact.\nS:U - The stack underflow corrupts kernel stack memory in the same host kernel authority; this is not a VM escape, IOMMU bypass, or sandbox boundary cross.\nC:H - When `nums` is a negative error code, `conn[nums++]=nid` is a stack out-of-bounds write; under scoring guidance, OOB write memory corruption is treatable as High confidentiality impact (same treatment as CVE-2023-52999).\nI:H - The bug is a stack out-of-bounds write of a widget NID below the on-stack `conn[8]` array, which is memory-corruption integrity impact and can corrupt frame/control data for control-flow hijack; OOB write scores High.\nA:H - Stack corruption from the negative-index write (and continued probe with a corrupted frame, since callers ignore `add_secret_dac_path()`\u2019s return) can produce an oops/panic; any kernel crash is High availability impact."}]}], "affected": [{"product": "Linux", 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index.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: hda/via: Evitar una posible matriz fuera de los l\u00edmites en add_secret_dac_path(). snd_hda_get_connections() puede devolver un c\u00f3digo de error negativo. Esto puede provocar el acceso a la matriz 'conn' con un \u00edndice negativo. Encontrada por el Centro de Verificaci\u00f3n de Linux (linuxtesting.org) con SVACE."}], "id": "CVE-2023-52988", "lastModified": "2026-06-17T06:44:03.803", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52988", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T17:20:44.580398Z", "version": "2.0.3"}}]}, "published": "2025-03-27T17:15:46.170", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1b9256c96220bcdba287eeeb90e7c910c77f8c46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2b557fa635e7487f638c0f030c305870839eeda2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/437e50ef6290ac835d526d0e45f466a0aa69ba1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6e1f586ddec48d71016b81acf68ba9f49ca54db8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b9cee506da2b7920b5ea02ccd8e78a907d0ee7aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d6870f3800dbb212ae8433183ee82f566d067c6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f011360ad234a07cb6fbcc720fff646a93a9f0d6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-129"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2023:6583", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6583", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-362.8.1.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}], "bugzilla": {"description": "kernel: ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()", "id": "2355431", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355431"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-129", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()\nsnd_hda_get_connections() can return a negative error code.\nIt may lead to accessing 'conn' array at a negative index.\nFound by Linux Verification Center (linuxtesting.org) with SVACE.", "A vulnerability was found in the Linux kernel's ALSA subsystem in the `add_secret_dac_path()` function, where improper array handling can lead to out-of-bounds access. This occurs if the return value of the call to `snd_hda_get_connections()` returns an error code (a negative number), which is stored in the variable `nums` that is then used as the upper bound of a for loop used to access the `conn` structure. This issue could lead to undefined behavior or a memory crash due to invalid memory access."], "name": "CVE-2023-52988", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52988\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52988\nhttps://lore.kernel.org/linux-cve-announce/2025032708-CVE-2023-52988-5520@gregkh/T"], "statement": "Red Hat rated this vulnerability with a MODERATE impact because an attacker would need access to load/manipulate ALSA codec data, which requires elevated privileges.", "threat_severity": "Moderate"}

{}