Linux Kernel smb2_is_status_io_timeout use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.2$5k-$25k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as critical. The impacted element is the function smb2_is_status_io_timeout. Executing a manipulation can lead to use after free. This vulnerability is tracked as CVE-2023-1192. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (version now known). It has been declared as critical. This vulnerability affects the function smb2_is_status_io_timeout. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability.

The weakness was disclosed 04/22/2023. The advisory is shared for download at bugzilla.opensuse.org. This vulnerability was named CVE-2023-1192 since 03/06/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/17/2025).

The vulnerability scanner Nessus provides a plugin with the ID 270144 (Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20663)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (270144) and CERT Bund (WID-SEC-2024-1086). Once again VulDB remains the best source for vulnerability data.

Affected

  • SUSE Linux
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 270144
Nessus Name: Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20663)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/06/2023 🔍
04/22/2023 +46 days 🔍
04/22/2023 +0 days 🔍
10/17/2025 +909 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.opensuse.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2023-1192 (🔍)
GCVE (CVE): GCVE-0-2023-1192
GCVE (VulDB): GCVE-100-227212
CERT Bund: WID-SEC-2024-1086 - IBM QRadar SIEM: Mehrere Schwachstellen

Entryinfo

Created: 04/22/2023 17:22
Updated: 10/17/2025 09:35
Changes: 04/22/2023 17:22 (37), 10/14/2025 04:16 (17), 10/17/2025 09:35 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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