{"id":"CVE-2021-0961","aliases":["A-196046570","ASB-A-196046570","EUVD-2021-3580","GHSA-9mr6-2c2v-735f","UBUNTU-CVE-2021-0961"],"status":"published","title":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to...","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00149,"percentile":0.04113,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-909"],"published":"2021-12-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":linux_kernel:","fixed_in":[":2021-12-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":linux_kernel:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2021-12-05"}]}],"versions":["Kernel"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2021-12-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-0961"},{"url":"https://github.com/advisories/GHSA-9mr6-2c2v-735f"},{"url":"https://android.googlesource.com/kernel/common/+/e113eb454e92","tags":["fix","report"]},{"url":"https://android.googlesource.com/kernel/common/+/60a4c35570d9","tags":["fix","report"]},{"url":"https://android.googlesource.com/kernel/common/+/4b05a506bda0","tags":["fix","report"]},{"url":"https://ubuntu.com/security/CVE-2021-0961","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-0961","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-0961","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","status":"published","published":"2021-12-15T18:05:46Z","modified":"2024-08-03T15:55:18.209Z","updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-3580","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","status":"published","published":"2021-12-15T18:05:46Z","modified":"2024-08-03T15:55:18Z","updated_at":"2026-11-03T03:25:16.085901Z"}],"ghsa":[{"id":"GHSA-9mr6-2c2v-735f","title":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to...","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","status":"published","published":"2021-12-16T00:01:22Z","modified":"2023-02-01T05:06:49Z","cwes":["CWE-909"],"updated_at":"2026-11-02T14:50:25.548742Z"}],"nvd":[{"id":"CVE-2021-0961","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","status":"published","published":"2021-12-15T19:15:11.83Z","modified":"2026-06-17T03:30:43.343Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-909"],"updated_at":"2026-11-02T14:07:02.189991Z"}],"osv":[{"id":"UBUNTU-CVE-2021-0961","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196046570References: Upstream kernel","status":"withdrawn","published":"2021-12-15T19:15:00Z","modified":"2025-07-16T07:41:58.468062Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"ASB-A-196046570","description":"In quota_proc_write of xt_quota2.c, there is a possible way to read kernel memory due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2021-12-01T00:00:00Z","modified":"2026-11-11T16:12:36.322289056Z","updated_at":"2026-11-10T17:35:05.376141Z"}]}}