2402272 – (CVE-2023-53684) CVE-2023-53684 kernel: xfrm: Zero padding when dumping algos and encap

Bug 2402272 (CVE-2023-53684) - CVE-2023-53684 kernel: xfrm: Zero padding when dumping algos and encap

Summary: CVE-2023-53684 kernel: xfrm: Zero padding when dumping algos and encap

Keywords:
Status:	NEW
Alias:	CVE-2023-53684
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-10-07 16:06 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:17 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-10-07 16:06:40 UTC

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.

Comment 1 Jon Moroney 2025-10-07 20:28:09 UTC Comment hidden (spam)

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