CVE-2023-53684

high

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: Zero padding when dumping algos and encap When copying data to user-space we should ensure that only valid data is copied over. Padding in structures may be filled with random (possibly sensitve) data and should never be given directly to user-space. This patch fixes the copying of xfrm algorithms and the encap template in xfrm_user so that padding is zeroed.

References

https://git.kernel.org/stable/c/8222d5910dae08213b6d9d4bc9a7f8502855e624

https://git.kernel.org/stable/c/5218af4ad5d8948faac19f71583bcd786c3852df

https://git.kernel.org/stable/c/1a351e26cc010d6991fbbd5701ac16581372e26f

https://git.kernel.org/stable/c/0725daaa9a879388ed312110f62dbd5ea2d75f8f

Details

Source: Mitre, NVD

Published: 2025-10-07

Updated: 2025-10-08

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00018