HCL Notes Client Email Composer buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in HCL Notes Client up to 9.0.1 FixPack 10 Interim Fix 7/10.0.1 FixPack 5/11.0.1. It has been classified as critical. The impacted element is an unknown function of the component Email Composer. This manipulation causes buffer overflow. This vulnerability is handled as CVE-2020-4097. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in HCL Notes Client up to 9.0.1 FixPack 10 Interim Fix 7/10.0.1 FixPack 5/11.0.1 and classified as critical. Affected by this vulnerability is an unknown code block of the component Email Composer. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 11/04/2020 as KB0084796. The advisory is shared at support.hcltechsw.com. This vulnerability is known as CVE-2020-4097. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 9.0.1 FixPack 10 Interim Fix 8, 10.0.1 FixPack 6 or 11.0.1 FixPack 1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Notes Client 9.0.1 FixPack 10 Interim Fix 8/10.0.1 FixPack 6/11.0.1 FixPack 1

Timelineinfo

12/30/2019 🔍
11/04/2020 +310 days 🔍
11/04/2020 +0 days 🔍
12/02/2020 +28 days 🔍

Sourcesinfo

Advisory: KB0084796
Status: Confirmed

CVE: CVE-2020-4097 (🔍)
GCVE (CVE): GCVE-0-2020-4097
GCVE (VulDB): GCVE-100-164281

Entryinfo

Created: 11/04/2020 14:04
Updated: 12/02/2020 01:16
Changes: 11/04/2020 14:04 (39), 12/02/2020 01:12 (2), 12/02/2020 01:16 (18)
Complete: 🔍
Submitter: CSieberg
Cache ID: 216::103

Submitinfo

Accepted

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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