CVE-2021-0920
medium · 6.4Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
Apply updates per vendor instructions.
Added 2022-05-23Remediation due 2022-06-13
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel
6.4
CVSS
0.9%
EPSS (exploit prob.)
57th
EPSS percentile
2021-12-15
Published
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-362CWE-416
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| linux | linux_kernel | <= 5.13 |
| linux | linux_kernel | 5.14 |
| linux | linux_kernel | 5.14 |
| linux | linux_kernel | 5.14 |
| android | all versions | |
| debian | debian_linux | 9.0 |
Check a specific version with /api/v1/cve/match.
References
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://source.android.com/security/bulletin/2021-11-01
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://source.android.com/security/bulletin/2021-11-01
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-0920