Vulnerability · Published Nov 29, 2021 · Assigned by redhat
CVE-2021-3802
Medium 4.2
In plain English
A medium-severity improper input validation in udisks2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.2Medium
Exploit odds (30 days)0.9%top 40.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A vulnerability found in udisks2. This flaw allows an attacker to input a specially crafted image file/USB leading to kernel panic. The highest threat from this vulnerability is to system availability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libudisks2 | 2.9.0-9.el8 | ALSA-2022:1820 |
| AlmaLinux:8 | libudisks2-devel | 2.9.0-9.el8 | ALSA-2022:1820 |
| AlmaLinux:8 | udisks2 | 2.9.0-9.el8 | ALSA-2022:1820 |
| AlmaLinux:8 | udisks2-iscsi | 2.9.0-9.el8 | ALSA-2022:1820 |
| AlmaLinux:8 | udisks2-lsm | 2.9.0-9.el8 | ALSA-2022:1820 |
| AlmaLinux:8 | udisks2-lvm2 | 2.9.0-9.el8 | ALSA-2022:1820 |
| Debian:12 | udisks2 | 2.9.4-1 | DEBIAN-CVE-2021-3802 |
| Debian:13 | udisks2 | 2.9.4-1 | DEBIAN-CVE-2021-3802 |
| Debian:14 | udisks2 | 2.9.4-1 | DEBIAN-CVE-2021-3802 |
| Rocky Linux:8 | udisks2 | 0:2.9.0-9.el8 | RLSA-2022:1820 |
Affected products (as reported)
Weakness: CWE-20