CVE-2023-53684 — Sensitive Information Exposure in Linux

CWE-200 — Sensitive Information Exposure5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 7

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel5.11 — 5.15.106+3
▶Debianlinux/linux_kernel< 6.1.25-1+2
▶CVEListV5linux/linuxc7a5899eb26e2a4d516d53f65b6dd67be2228041 — 0725daaa9a879388ed312110f62dbd5ea2d75f8f+4
▶debiandebian/linux< linux 6.1.25-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53684: 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↗2025-10-07
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GHSA
GHSA-pmq6-ggff-fwmg: In the Linux kernel, the following vulnerability has been resolved: xfrm: Zero padding when dumping algos and encap When copying data to user-space↗2025-10-07
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📋Vendor Advisories

2
Red Hat
kernel: xfrm: Zero padding when dumping algos and encap↗2025-10-07
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Debian
CVE-2023-53684: linux - In the Linux kernel, the following vulnerability has been resolved: xfrm: Zero ...↗2023
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