CVE-2022-48748 is a memory leak vulnerability in the Linux kernel's bridge VLAN module, specifically within the __allowed_ingress function. This flaw occurs when per-VLAN state is used without VLAN snooping or stats, leading to un-freed memory for dropped untagged or priority-tagged ingress frames. Rated 7.5 HIGH (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), it is a network-exploitable vulnerability with low attack complexity, resulting in a high availability impact due to the memory leak. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.6, < 5.10.96CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.11, < 5.15.19CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 5.16.5CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.17CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.