Use of Uninitialized Resource Affecting samba package, versions <2:4.23.2+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-SAMBA-13571140
  • published16 Oct 2025
  • disclosed15 Oct 2025

Introduced: 15 Oct 2025

NewCVE-2025-9640  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Debian:unstable samba to version 2:4.23.2+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was found in Samba, in the vfs_streams_xattr module, where uninitialized heap memory could be written into alternate data streams. This allows an authenticated user to read residual memory content that may include sensitive data, resulting in an information disclosure vulnerability.

CVSS Base Scores

version 3.1