VDB-241226 · CVE-2023-30738 · GCVE-0-2023-30738

Samsung UEFI Firmware SMM memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Samsung UEFI Firmware. It has been declared as critical. The impacted element is an unknown function of the component SMM. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2023-30738. The attack needs to be performed locally. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Samsung UEFI Firmware (Firmware Software) (version now known). It has been rated as critical. Affected by this issue is some unknown processing of the component SMM. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

An improper input validation in UEFI Firmware prior to Firmware update Oct-2023 Release in Galaxy Book, Galaxy Book Pro, Galaxy Book Pro 360 and Galaxy Book Odyssey allows local attacker to execute SMM memory corruption.

The weakness was released 10/04/2023. The advisory is available at security.samsungmobile.com. This vulnerability is handled as CVE-2023-30738 since 04/14/2023. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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

Productinfo

Type

Firmware Software

Vendor

Samsung

Name

UEFI Firmware

License

commercial

Website

Vendor: https://www.samsung.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (Samsung Mobile): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/14/2023 🔍
10/04/2023 +173 days 🔍
10/04/2023 +0 days 🔍
10/25/2023 +21 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Confirmed

CVE: CVE-2023-30738 (🔍)
GCVE (CVE): GCVE-0-2023-30738
GCVE (VulDB): GCVE-100-241226

Entryinfo

Created: 10/04/2023 08:12
Updated: 10/25/2023 10:07
Changes: 10/04/2023 08:12 (49), 10/25/2023 10:07 (11)
Complete: 🔍
Cache ID: 216::103