MariaDB up to 10.6.3 /strings/ctype-simple.c my_wildcmp_8bit_impl use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MariaDB up to 10.6.3. It has been declared as critical. This issue affects the function my_wildcmp_8bit_impl of the file /strings/ctype-simple.c. The manipulation results in use after free. This vulnerability is reported as CVE-2022-27455. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in MariaDB up to 10.6.3 (Database Software). It has been classified as critical. Affected is the function my_wildcmp_8bit_impl of the file /strings/ctype-simple.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 04/14/2022. The advisory is available at jira.mariadb.org. This vulnerability is traded as CVE-2022-27455 since 03/21/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/22/2025).

The vulnerability scanner Nessus provides a plugin with the ID 236542 (Alibaba Cloud Linux 3 : 0151: mariadb:10.5 (ALINUX3-SA-2022:0151)), 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 vulnerability database at Tenable (236542). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: 236542
Nessus Name: Alibaba Cloud Linux 3 : 0151: mariadb:10.5 (ALINUX3-SA-2022:0151)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/21/2022 🔍
04/14/2022 +23 days 🔍
04/14/2022 +0 days 🔍
05/22/2025 +1133 days 🔍

Sourcesinfo

Advisory: jira.mariadb.org
Status: Confirmed

CVE: CVE-2022-27455 (🔍)
GCVE (CVE): GCVE-0-2022-27455
GCVE (VulDB): GCVE-100-197322

Entryinfo

Created: 04/14/2022 16:58
Updated: 05/22/2025 00:16
Changes: 04/14/2022 16:58 (38), 04/19/2022 17:42 (1), 05/22/2025 00:16 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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