Zscaler Client Connector prior 1.3.1.6 on Linux signelf out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Zscaler Client Connector on Linux. Impacted is an unknown function of the file signelf. Executing a manipulation can lead to out-of-bounds write. This vulnerability is registered as CVE-2023-28793. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Zscaler Client Connector on Linux. It has been declared as critical. This vulnerability affects an unknown functionality of the file signelf. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow vulnerability in the signelf library used by Zscaler Client Connector on Linux allows Code Injection. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.

The weakness was published 10/23/2023. The advisory is shared for download at help.zscaler.com. This vulnerability was named CVE-2023-28793 since 03/23/2023. There are known technical details, but no exploit is available.

Upgrading to version 1.3.1.6 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Zscaler, Inc.): 🔍

CVSSv2info

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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Client Connector 1.3.1.6

Timelineinfo

03/23/2023 🔍
10/23/2023 +213 days 🔍
10/23/2023 +0 days 🔍
10/18/2024 +361 days 🔍

Sourcesinfo

Advisory: help.zscaler.com
Status: Confirmed

CVE: CVE-2023-28793 (🔍)
GCVE (CVE): GCVE-0-2023-28793
GCVE (VulDB): GCVE-100-243160

Entryinfo

Created: 10/23/2023 16:49
Updated: 10/18/2024 03:51
Changes: 10/23/2023 16:49 (50), 10/18/2024 03:51 (26)
Complete: 🔍
Cache ID: 216::103

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