Vulnerability · Published May 12, 2022 · Assigned by intel
CVE-2021-33135
Medium 5.5
In plain English
A medium-severity uncontrolled resource consumption in Intel(R) SGX. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 79.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Uncontrolled resource consumption in the Linux kernel drivers for Intel(R) SGX may allow an authenticated user to potentially enable denial of service via local access.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.16.18-1 | DEBIAN-CVE-2021-33135 |
| Debian:13 | linux | 5.16.18-1 | DEBIAN-CVE-2021-33135 |
| Debian:14 | linux | 5.16.18-1 | DEBIAN-CVE-2021-33135 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2021-33135 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2021-33135 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2021-33135 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Intel(R) SGX | See references |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H