DEBIAN-CVE-2025-37778

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2025-37778
Downstream
DLA-4193-1
Published: 01 May 2025, 14:15
Last modified:15 Jun 2026, 19:05

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 May 2025, 14:15
Published
Vulnerability first disclosed
15 Jun 2026, 19:05
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL. It calls ksmbd_krb5_authenticate to reinitialise sess->user but that function may return without doing so. If that happens then smb2_sess_setup, which calls krb_authenticate, will be accessing free'd memory when it later uses sess->user.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 6.1.135-1 | < 6.12.25-1 | < 6.12.25-1

  • debian•linux-6.1

    < 6.1.137-1~deb11u1

References (1)