Vulnerability · Published Sep 14, 2022 · Assigned by redhat
CVE-2022-2977
High 7.8
In plain English
A high-severity use-after-free in Linux kernel. 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 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 84.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-free and create a situation where it may be possible to escalate privileges on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.17.3-1 | DEBIAN-CVE-2022-2977 |
| Debian:13 | linux | 5.17.3-1 | DEBIAN-CVE-2022-2977 |
| Debian:14 | linux | 5.17.3-1 | DEBIAN-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux | 5.15.0-37.39 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1011.14 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1010.12 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1008.12 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1008.10 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1007.8 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1008.11 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1010.11 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-37.39 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1004.4 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1009.12 | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1011.13 | UBUNTU-CVE-2022-2977 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-2977 |
| Ubuntu:22.04:LTS | linux-riscv | 5.15.0-1012.13 | UBUNTU-CVE-2022-2977 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux kernel | Linux kernel versions prior to 5.18 |
Weakness: CWE-416