Hancom Office 2020 11.0.0.5357 Hword buffer underflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Hancom Office 2020 11.0.0.5357. This vulnerability affects unknown code of the component Hword. Performing a manipulation results in buffer underflow. This vulnerability is cataloged as CVE-2022-33896. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Hancom Office 2020 11.0.0.5357. This affects some unknown processing of the component Hword. The manipulation with an unknown input leads to a buffer underflow vulnerability. CWE is classifying the issue as CWE-124. The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version 11.0.0.5357 parses XML-based office files. A specially-crafted malformed file can cause memory corruption by using memory before buffer start, which can lead to code execution. A victim would need to access a malicious file to trigger this vulnerability.

The weakness was shared 10/07/2022 as TALOS-2022-1574. It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2022-33896 since 07/05/2022. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Talos): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer underflow
CWE: CWE-124 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/05/2022 🔍
10/07/2022 +94 days 🔍
10/07/2022 +0 days 🔍
10/07/2022 +0 days 🔍

Sourcesinfo

Advisory: TALOS-2022-1574
Status: Confirmed

CVE: CVE-2022-33896 (🔍)
GCVE (CVE): GCVE-0-2022-33896
GCVE (VulDB): GCVE-100-210279

Entryinfo

Created: 10/07/2022 21:27
Changes: 10/07/2022 21:27 (49)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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