{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-0266", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2023-01-13T07:58:13.390Z", "datePublished": "2023-01-30T13:09:32.141Z", "dateUpdated": "2024-08-02T05:02:44.150Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "ALSA pcm", "product": "Linux Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [{"lessThan": "56b88b50565cd8b946a2d00b0c83927b7ebb055e", "status": "affected", "version": "4.14", "versionType": "git"}]}], "datePublic": "2023-01-13T00:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.<span style=\"background-color: rgb(255, 255, 255);\">&nbsp;SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit&nbsp;56b88b50565cd8b946a2d00b0c83927b7ebb055e</span><br>"}], "value": "A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.\u00a0SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit\u00a056b88b50565cd8b946a2d00b0c83927b7ebb055e\n"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2023-01-30T13:09:32.141Z"}, "references": [{"url": "https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4"}, {"url": "https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"}], "source": {"discovery": "UNKNOWN"}, "title": "Use after free in SNDRV_CTL_IOCTL_ELEM in Linux Kernel", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T05:02:44.150Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4", "tags": ["x_transferred"]}, {"url": "https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html", "tags": ["x_transferred"]}]}]}}

{}

{"cisaActionDue": "2023-04-20", "cisaExploitAdd": "2023-03-30", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Linux Kernel Use-After-Free Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E245BC6C-44BD-47D1-A03D-9FE1F29BB25A", "versionEndExcluding": "4.14.303", "versionStartIncluding": "4.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AE8904A3-99BE-4E49-9682-1F90A6373F4F", "versionEndExcluding": "4.19.270", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A0C0D95E-414A-445E-941B-3EF6A4D3A093", "versionEndExcluding": "5.4.229", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65", "versionEndExcluding": "5.10.163", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D71B7395-3263-46DE-9341-53C437B49ADF", "versionEndExcluding": "5.15.88", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "04212AC4-FF1E-4F38-8AE9-53E2A69A00DC", "versionEndExcluding": "6.1.6", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.\u00a0SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit\u00a056b88b50565cd8b946a2d00b0c83927b7ebb055e\n"}], "id": "CVE-2023-0266", "lastModified": "2023-08-29T17:59:37.930", "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": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.9, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 6.0, "source": "cve-coordination@google.com", "type": "Secondary"}]}, "published": "2023-01-30T14:15:10.500", "references": [{"source": "cve-coordination@google.com", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4"}, {"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/56b88b50565cd8b946a2d00b0c83927b7ebb055e"}, {"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/becf9e5d553c2389d857a3c178ce80fdb34a02e1"}, {"source": "cve-coordination@google.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "cve-coordination@google.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2023:1584", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-425.19.2.rt7.230.el8_7", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1566", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-425.19.2.el8_7", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1659", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-04-05T00:00:00Z"}, {"advisory": "RHSA-2023:1588", "cpe": "cpe:/o:redhat:rhel_e4s:8.1", "package": "kernel-0:4.18.0-147.81.1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1590", "cpe": "cpe:/o:redhat:rhel_e4s:8.1", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1559", "cpe": "cpe:/o:redhat:rhel_aus:8.2", "package": "kernel-0:4.18.0-193.105.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1560", "cpe": "cpe:/a:redhat:rhel_tus:8.2::nfv", "package": "kernel-rt-0:4.18.0-193.105.1.rt13.156.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1559", "cpe": "cpe:/o:redhat:rhel_tus:8.2", "package": "kernel-0:4.18.0-193.105.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1559", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "kernel-0:4.18.0-193.105.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1666", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2023-04-05T00:00:00Z"}, {"advisory": "RHSA-2023:1556", "cpe": "cpe:/a:redhat:rhel_eus:8.4::nfv", "package": "kernel-rt-0:4.18.0-305.86.2.rt7.160.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1557", "cpe": "cpe:/o:redhat:rhel_eus:8.4", "package": "kernel-0:4.18.0-305.86.2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1662", "cpe": "cpe:/o:redhat:rhel_eus:8.4", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.4 Extended Update Support", "release_date": "2023-04-05T00:00:00Z"}, {"advisory": "RHSA-2023:1554", "cpe": "cpe:/o:redhat:rhel_eus:8.6", "package": "kernel-0:4.18.0-372.51.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1660", "cpe": "cpe:/o:redhat:rhel_eus:8.6", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-04-05T00:00:00Z"}, {"advisory": "RHSA-2023:1470", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.22.2.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-03-27T00:00:00Z"}, {"advisory": "RHSA-2023:1469", "cpe": "cpe:/a:redhat:enterprise_linux:9::nfv", "package": "kernel-rt-0:5.14.0-162.22.2.rt21.186.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-03-27T00:00:00Z"}, {"advisory": "RHSA-2023:1470", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-162.22.2.el9_1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-03-27T00:00:00Z"}, {"advisory": "RHSA-2023:1471", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-03-27T00:00:00Z"}, {"advisory": "RHSA-2023:1202", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "kernel-0:5.14.0-70.49.1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-03-14T00:00:00Z"}, {"advisory": "RHSA-2023:1203", "cpe": "cpe:/a:redhat:rhel_eus:9.0::nfv", "package": "kernel-rt-0:5.14.0-70.49.1.rt21.120.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-03-14T00:00:00Z"}, {"advisory": "RHSA-2023:1435", "cpe": "cpe:/o:redhat:rhel_eus:9.0", "package": "kpatch-patch", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-03-23T00:00:00Z"}, {"advisory": "RHSA-2023:1554", "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8", "package": "kernel-0:4.18.0-372.51.1.el8_6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8", "release_date": "2023-04-04T00:00:00Z"}, {"advisory": "RHSA-2023:1677", "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8", "package": "redhat-virtualization-host-0:4.5.3-202304051438_8.6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8", "release_date": "2023-04-10T00:00:00Z"}], "bugzilla": {"description": "ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF", "id": "2163379", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2163379"}, "csaw": true, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.\u00a0SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit\u00a056b88b50565cd8b946a2d00b0c83927b7ebb055e", "A use-after-free flaw was found in snd_ctl_elem_read in sound/core/control.c in Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. In this flaw a normal privileged, local attacker may impact the system due to a locking issue in the compat path, leading to a kernel information leak problem."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, skip loading (blacklist) the affected soundcard using modules like:\nblacklist soundcore\nblacklist snd\nblacklist snd_pcm\nblacklist snd_hda_codec_hdmi\nblacklist snd_hda_codec_realtek\nblacklist snd_hda_codec_generic\nblacklist snd_hda_intel\nblacklist snd_hda_codec\nblacklist snd_hda_core\nblacklist snd_hwdep\nblacklist snd_timer\nonto the system till we have a fix available. \nThis can be done by a blacklist mechanism, this will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically?\nhttps://access.redhat.com/solutions/41278 \n~~~"}, "name": "CVE-2023-0266", "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"}], "public_date": "2023-01-13T06:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-0266\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-0266\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=56b88b50565cd8b946a2d00b0c83927b7ebb055e\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "threat_severity": "Important", "upstream_fix": "Kernel 6.2 RC4"}