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{"bugzilla": {"description": "kernel: race condition in the Android binder driver could lead to incorrect security checks", "id": "2063219", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2063219"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-366->CWE-266", "details": ["In several functions of binder.c, there is a possible way to represent the wrong domain to SELinux due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-200688826References: Upstream kernel", "A race condition was found in the Linux kernel Android binder driver. The driver is not included to the other kernels, apart from Android devices. This issue could allow a local user to crash the system or potentially escalate their privileges on the system."], "name": "CVE-2021-39686", "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"}, {"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"}], "public_date": "2022-03-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-39686\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-39686\nhttps://android.googlesource.com/kernel/common/+/11db2de0af2a\nhttps://android.googlesource.com/kernel/common/+/3af7a2f61023\nhttps://android.googlesource.com/kernel/common/+/a4eacf3227bd\nhttps://android.googlesource.com/kernel/common/+/d49297739550\nhttps://source.android.com/security/bulletin/2022-03-01"], "statement": "No shipped kernel version was seen affected by this problem. These files are not built in our source code.", "threat_severity": "Important", "upstream_fix": "Kernel 5.14.18"}