VulnerabilityModified
CVE-2022-20421
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free.
HIGH 7.8EPSS 0.67%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free. 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-239630375References: Upstream kernel
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.67% probability · 50th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- google/android · debian/debian linux
- Source
- security@android.com
References
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
- https://source.android.com/security/bulletin/2022-10-01Patch, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5257Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing List, Third Party Advisory
- https://source.android.com/security/bulletin/2022-10-01Patch, Vendor Advisory
- https://www.debian.org/security/2022/dsa-5257Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.