CVE-2023-53684
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0725daaa9a879388ed312110f62dbd5ea2d75f8f ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0725daaa9a879388ed312110f62dbd5ea2d75f8fPatch
- https://git.kernel.org/stable/c/1a351e26cc010d6991fbbd5701ac16581372e26fPatch
- https://git.kernel.org/stable/c/5218af4ad5d8948faac19f71583bcd786c3852dfPatch
- https://git.kernel.org/stable/c/8222d5910dae08213b6d9d4bc9a7f8502855e624Patch