VDB-205428 · CVE-2022-26427 · ALPS07085540

MediaTek MT6833/MT6853/MT6873/MT6877/MT6893 Camera ISP out-of-bounds write

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in MediaTek MT6833, MT6853, MT6873, MT6877 and MT6893. It has been declared as critical. This vulnerability affects unknown code of the component Camera ISP. The manipulation results in out-of-bounds write. This vulnerability was named CVE-2022-26427. The attack needs to be approached locally. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in MediaTek MT6833, MT6853, MT6873, MT6877 and MT6893 (Chip Software). Affected is some unknown processing of the component Camera ISP. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In camera isp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07085540; Issue ID: ALPS07085540.

The weakness was presented 08/01/2022 as ALPS07085540. The advisory is shared for download at corp.mediatek.com. This vulnerability is traded as CVE-2022-26427 since 03/04/2022. There are neither technical details nor an exploit publicly available.

Applying the patch ALPS07085540 is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Chip Software

Vendor

MediaTek

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / 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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: ALPS07085540

Timelineinfo

03/04/2022 🔍
08/01/2022 +149 days 🔍
08/01/2022 +0 days 🔍
08/29/2022 +28 days 🔍

Sourcesinfo

Advisory: ALPS07085540
Status: Confirmed

CVE: CVE-2022-26427 (🔍)
GCVE (CVE): GCVE-0-2022-26427
GCVE (VulDB): GCVE-100-205428

Entryinfo

Created: 08/01/2022 20:58
Updated: 08/29/2022 13:31
Changes: 08/01/2022 20:58 (41), 08/29/2022 13:31 (11)
Complete: 🔍
Cache ID: 216::103