Vulnerability · Published Jan 11, 2021 · Assigned by google_android
CVE-2021-0342
Medium 6.7
In plain English
A medium-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 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.7Medium
Exploit odds (30 days)0.2%top 92.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In tun_get_user of tun.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges required. User interaction is not required for exploitation. Product: Android; Versions: Android kernel; Android ID: A-146554327.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-305.el8 | ALSA-2021:1578 |
| Debian:12 | linux | 5.7.6-1 | DEBIAN-CVE-2021-0342 |
| Debian:13 | linux | 5.7.6-1 | DEBIAN-CVE-2021-0342 |
| Debian:14 | linux | 5.7.6-1 | DEBIAN-CVE-2021-0342 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2021-0342 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2021-0342 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2021-0342 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2021-0342 |
Affected products (as reported)
References
- https://source.android.com/security/bulletin/pixel/2021-01-01 x_refsource_CONFIRM