Vulnerability · Published Aug 25, 2022 · Assigned by redhat
CVE-2022-2991
Medium 6.7
In plain English
A medium-severity heap buffer overflow in kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A heap-based buffer overflow was found in the Linux kernel's LightNVM subsystem. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. This vulnerability allows a local attacker to escalate privileges and execute arbitrary code in the context of the kernel. The attacker must first obtain the ability to execute high-privileged code on the target system to exploit this vulnerability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.15.3-1 | DEBIAN-CVE-2022-2991 |
| Debian:13 | linux | 5.15.3-1 | DEBIAN-CVE-2022-2991 |
| Debian:14 | linux | 5.15.3-1 | DEBIAN-CVE-2022-2991 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2022-2991 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2022-2991 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2022-2991 |
Affected products (as reported)
Weakness: CWE-122