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Vulnerability Details :

CVE-2023-32256

Summary
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
Published At-01 Aug, 2025 | 17:37
Updated At-01 Aug, 2025 | 19:19
Rejected At-
Credits

Kernel: ksmbd race issue from smb2 close and logoff with multichannel

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:redhat
Assigner Org ID:53f830b8-0a3f-465b-8143-3b8a9948e749
Published At:01 Aug, 2025 | 17:37
Updated At:01 Aug, 2025 | 19:19
Rejected At:
▼CVE Numbering Authority (CNA)
Kernel: ksmbd race issue from smb2 close and logoff with multichannel

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.

Affected Products
Collection URL
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
Package Name
linux
Default Status
unaffected
Versions
Affected
  • From 0 before 5.15.145 (semvar)
  • From 6.0.0 before 6.0.* (semvar)
  • From 6.1.0 before 6.1.29 (semvar)
  • From 6.2.0 before 6.2.16 (semvar)
  • From 6.3.0 before 6.3.2 (semvar)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 10
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:10
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:8
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:8
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:9
Default Status
unaffected
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:9
Default Status
unaffected
Problem Types
TypeCWE IDDescription
CWECWE-421Race Condition During Access to Alternate Channel
Type: CWE
CWE ID: CWE-421
Description: Race Condition During Access to Alternate Channel
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
Metrics Other Info
Red Hat severity rating
value:
Important
namespace:
https://access.redhat.com/security/updates/classification/
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Reported to Red Hat.2025-08-01 01:05:16
Made public.2023-05-17 00:00:00
Event: Reported to Red Hat.
Date: 2025-08-01 01:05:16
Event: Made public.
Date: 2023-05-17 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://access.redhat.com/security/cve/CVE-2023-32256
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2385885
issue-tracking
x_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19
N/A
https://www.zerodayinitiative.com/advisories/ZDI-23-704/
N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-32256
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2385885
Resource:
issue-tracking
x_refsource_REDHAT
Hyperlink: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19
Resource: N/A
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-23-704/
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:secalert@redhat.com
Published At:01 Aug, 2025 | 18:15
Updated At:04 Aug, 2025 | 15:06

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-421Primarysecalert@redhat.com
CWE ID: CWE-421
Type: Primary
Source: secalert@redhat.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://access.redhat.com/security/cve/CVE-2023-32256secalert@redhat.com
N/A
https://bugzilla.redhat.com/show_bug.cgi?id=2385885secalert@redhat.com
N/A
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19secalert@redhat.com
N/A
https://www.zerodayinitiative.com/advisories/ZDI-23-704/secalert@redhat.com
N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-32256
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2385885
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19
Source: secalert@redhat.com
Resource: N/A
Hyperlink: https://www.zerodayinitiative.com/advisories/ZDI-23-704/
Source: secalert@redhat.com
Resource: N/A

Change History

0
Information is not available yet

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