{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48739", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-06-20T11:09:39.054Z", "datePublished": "2024-06-20T11:13:24.693Z", "dateUpdated": "2026-08-05T08:52:03.510Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:03.510Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: hdmi-codec: Fix OOB memory accesses\n\nCorrect size of iec_status array by changing it to the size of status\narray of the struct snd_aes_iec958. This fixes out-of-bounds slab\nread accesses made by memcpy() of the hdmi-codec driver. This problem\nis reported by KASAN." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The OOB read is reached via local ALSA PCM ioctls (open /dev/snd/pcmC*D*p → SNDRV_PCM_IOCTL_HW_PARAMS/PREPARE → ASoC → hdmi_codec_hw_params/prepare), not via network packets or physical HDMI signaling.\nAC:L - An attacker who can open the HDMI PCM device can reliably trigger the 24-byte memcpy from the 5-byte iec_status array; no race or attacker-uncontrollable state is required beyond the device being present.\nPR:L - ALSA PCM/control nodes are usable by ordinary unprivileged users with audio-group or session ACL access (typical on desktops, SBCs, and Android), and the ASoC path has no CAP_* checks requiring real root.\nUI:N - The attacker opens the HDMI playback PCM and issues hw_params/prepare themselves; no separate victim action is required.\nS:U - Impact is confined to the local kernel (slab OOB read / possible oops); this is not a VM escape, IOMMU bypass, or other security-authority boundary cross.\nC:H - hdmi_codec_hw_params/prepare memcpy sizeof(hp.iec.status) (24) from iec_status[5], reading 19 adjacent slab bytes past the object end into kernel memory; guidance treats such OOB slab reads as High confidentiality impact.\nI:N - The bug is a read-only out-of-bounds access; the control put path copies only sizeof(iec_status) (5 bytes) and there is no OOB write or control-flow hijack primitive.\nA:H - Reading past the end of the kmalloc'd hdmi_codec_priv slab object can fault on unmapped/poisoned memory and oops/panic the kernel, as reflected by the KASAN slab-out-of-bounds report." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "include/uapi/sound/asound.h", "sound/soc/codecs/hdmi-codec.c" ], "versions": [ { "version": "7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3", "lessThan": "10007bd96b6c4c3cfaea9e76c311b06a07a5e260", "status": "affected", "versionType": "git" }, { "version": "7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3", "lessThan": "1552e66be325a21d7eff49f46013fb402165a0ac", "status": "affected", "versionType": "git" }, { "version": "7a8e1d44211e16eb394b7b9e0b236ee1503a3ad3", "lessThan": "06feec6005c9d9500cd286ec440aabf8b2ddd94d", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "include/uapi/sound/asound.h", "sound/soc/codecs/hdmi-codec.c" ], "versions": [ { "version": "5.14", "status": "affected" }, { "version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.22", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.8", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17", "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": "5.14", "versionEndExcluding": "5.15.22" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.16.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "5.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/10007bd96b6c4c3cfaea9e76c311b06a07a5e260" }, { "url": "https://git.kernel.org/stable/c/1552e66be325a21d7eff49f46013fb402165a0ac" }, { "url": "https://git.kernel.org/stable/c/06feec6005c9d9500cd286ec440aabf8b2ddd94d" } ], "title": "ASoC: hdmi-codec: Fix OOB memory accesses", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:24:59.935Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/10007bd96b6c4c3cfaea9e76c311b06a07a5e260", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/1552e66be325a21d7eff49f46013fb402165a0ac", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/06feec6005c9d9500cd286ec440aabf8b2ddd94d", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-48739", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T17:10:44.552131Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:48.539Z" } } ] } }