Vulnerability · Published Aug 31, 2022 · Assigned by redhat
CVE-2022-2590
High 7.0
In plain English
A high-severity race condition 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 0.9% (higher than 61% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.9%top 38.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Public PoC
Official description
A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | linux | 5.18.16-1 | DEBIAN-CVE-2022-2590 |
| Debian:13 | linux | 5.18.16-1 | DEBIAN-CVE-2022-2590 |
| Debian:14 | linux | 5.18.16-1 | DEBIAN-CVE-2022-2590 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1031.32 | USN-6071-1 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | 5.17.0-1031.32 | UBUNTU-CVE-2022-2590 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | Linux kernel | Linux kernel 5.16 onwards |
Weakness: CWE-362
References
- https://www.openwall.com/lists/oss-security/2022/08/08/1 x_refsource_MISC
- https://lore.kernel.org/linux-mm/20220808073232.8808-1-david%40redhat.com/ x_refsource_MISC