CVE-2023-4132

Kernel: smsusb: use-after-free caused by do_submit_urb()

MEDIUM
5.5
CVSS Score
Published: August 3, 2023 at 02:32 PM UTC
Updated: June 17, 2026 at 06:37 AM UTC
6 products affected across 4 vendorsLinux KernelDebian LinuxFedora

Using Red Hat Enterprise Linux 8 by Red Hat?

Get instant alerts when new vulnerabilities affect Red Hat Enterprise Linux 8 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
v ≤ 6.2.16
Vendor states this is fixed in 0:4.18.0-372.91.1.el8_6 (unaffected)
Vendor states this is fixed in 0:4.18.0-477.43.1.el8_8 (unaffected)
Vendor states this is fixed in 0:4.18.0-513.5.1.el8_9 (unaffected)
Vendor states this is fixed in 0:4.18.0-513.5.1.rt7.307.el8_9 (unaffected)
Vendor states this is fixed in 9 (unaffected)
Vendor states this is fixed in 6 (unknown)
Vendor states this is fixed in 7 (unknown)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (10)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:6901
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077
VDB Entryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4132
Issue Trackingx_refsource_REDHATThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2221707
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20231020-0005/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card