CVE-2022-2586
Linux Kernel Use-After-Free Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Linux, fix it now.
CISA required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
US federal civilian agencies must remediate by Jul 17, 2024.
Patch status
Official fix available since
Apply the vendor's update to every affected system. Check the fixed-in versions below where known.
Basis: NVD patch reference
Description
It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Fixed in | Source |
|---|---|---|---|---|
| Linux | Linux | >= 3.16, < 4.14.316; >= 4.15, < 4.19.256; >= 4.20, < 5.4.211; >= 5.5, < 5.10.137; >= 5.11, < 5.15.61; >= 5.16, < 5.18.18 | 4.14.316; 4.19.256; 5.4.211; 5.10.137; 5.15.61; 5.18.18 | KEV |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2022-2586 scored CVSS 7.8: Linux Kernel, Linux Kernel Use-After-Free Vulnerability
CISA lists this as exploited in the wild. Unpatched Kernel systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
- Patch releasedUpdateKEV
Patch released for CVE-2022-2586: Linux Kernel, Linux Kernel Use-After-Free Vulnerability
An official fix is now available for Linux Kernel. This vulnerability is being exploited, so apply it promptly.
Basis: NVD patch reference
1 earlier event is available with a subscription. See plans.
Coverage
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