Vulnerability · Published Dec 15, 2021 · Assigned by google_android
CVE-2021-0929
High 7.8
In plain English
A high-severity security flaw in Android. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 94.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In ion_dma_buf_end_cpu_access and related functions of ion.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-187527909References: Upstream kernel
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.6.4-1 | DEBIAN-CVE-2021-0929 |
| Debian:13 | linux | 5.6.4-1 | DEBIAN-CVE-2021-0929 |
| Debian:14 | linux | 5.6.4-1 | DEBIAN-CVE-2021-0929 |
Affected products (as reported)
References
- https://source.android.com/security/bulletin/2021-11-01 x_refsource_MISC