CVE-2022-48748
Linux Bridge VLAN Memory Leak vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.
INFO
Published Date :
June 20, 2024, 12:15 p.m.
Last Modified :
March 24, 2025, 6:17 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-48748.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-48748 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48748 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 24, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.10.96 Added Reference Type CVE: https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 Added Reference https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797 Added Reference https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 Added Reference https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-400 Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 20, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false. Added Reference kernel.org https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48748 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-48748
weaknesses.