CVE-2025-37778
Kerberos SMBD Dangling Pointer
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.
INFO
Published Date :
May 1, 2025, 2:15 p.m.
Last Modified :
May 2, 2025, 1:53 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2025-37778.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2025-37778 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-37778 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/1db2451de23e98bc864c6a6e52aa0d82c91cb325 Added Reference https://git.kernel.org/stable/c/1e440d5b25b7efccb3defe542a73c51005799a5f Added Reference https://git.kernel.org/stable/c/6e30c0e10210c714f3d4453dc258d4abcc70364e Added Reference https://git.kernel.org/stable/c/d5b554bc8d554ed6ddf443d3db2fad9f665cec10 Added Reference https://git.kernel.org/stable/c/e83e39a5f6a01a81411a4558a59a10f87aa88dd6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-37778 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-37778
weaknesses.