CVE-2022-49340 is a medium-severity vulnerability in the Linux kernel's ip_gre module, specifically related to how Generic Routing Encapsulation (GRE) handles checksum offloading. The flaw could lead to a denial-of-service (DoS) condition if an attacker can trigger an overflow during the checksum validation process. The vulnerability has a CVSS score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), indicating that local access with low privileges is required, and the primary impact is high availability loss. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.19.207, < 4.19.247CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.4.148, < 5.4.198CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.10.68, < 5.10.122CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.14.7, < 5.15.47CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 5.17.15CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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