SB2025032751 - Use of uninitialized resource in Linux kernel net ipvlan driver
Published: March 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025032751
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2025-21891)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the ipvlan_addr_lookup() and ipvlan_process_v6_outbound() functions in drivers/net/ipvlan/ipvlan_core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/27843ce6ba3d3122b65066550fe33fb8839f8aef
- https://git.kernel.org/stable/c/4ec48f812804f370f622e0874e6dd8fcc58241cd
- https://git.kernel.org/stable/c/5353fd89663c48f56bdff975c562cfe78b1a2e4c
- https://git.kernel.org/stable/c/5b8dea8d1612dc7151d2457d7d2e6a69820309bf
- https://git.kernel.org/stable/c/e2a4f76a2d8a44816ecd25bcbdb47b786d621974
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.6