Zscaler Client Connector up to 2.1.2.73 on Windows TLS Server stack-based overflow

Summaryinfo

A vulnerability labeled as critical has been found in Zscaler Client Connector up to 2.1.2.73 on Windows. This issue affects some unknown processing of the component TLS Server Handler. The manipulation results in stack-based overflow. This vulnerability is identified as CVE-2020-11633. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Zscaler Client Connector up to 2.1.2.73 on Windows. Affected is an unknown part of the component TLS Server Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 07/16/2021. The advisory is shared for download at help.zscaler.com. This vulnerability is traded as CVE-2020-11633. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.1.2.74 eliminates this vulnerability. The upgrade is hosted for download at help.zscaler.com.

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

Productinfo

Vendor

• Zscaler

Name

• Client Connector

Version

• 2.1.2.0
• 2.1.2.1
• 2.1.2.2
• 2.1.2.3
• 2.1.2.4
• 2.1.2.5
• 2.1.2.6
• 2.1.2.7
• 2.1.2.8
• 2.1.2.9
• 2.1.2.10
• 2.1.2.11
• 2.1.2.12
• 2.1.2.13
• 2.1.2.14
• 2.1.2.15
• 2.1.2.16
• 2.1.2.17
• 2.1.2.18
• 2.1.2.19
• 2.1.2.20
• 2.1.2.21
• 2.1.2.22
• 2.1.2.23
• 2.1.2.24
• 2.1.2.25
• 2.1.2.26
• 2.1.2.27
• 2.1.2.28
• 2.1.2.29
• 2.1.2.30
• 2.1.2.31
• 2.1.2.32
• 2.1.2.33
• 2.1.2.34
• 2.1.2.35
• 2.1.2.36
• 2.1.2.37
• 2.1.2.38
• 2.1.2.39
• 2.1.2.40
• 2.1.2.41
• 2.1.2.42
• 2.1.2.43
• 2.1.2.44
• 2.1.2.45
• 2.1.2.46
• 2.1.2.47
• 2.1.2.48
• 2.1.2.49
• 2.1.2.50
• 2.1.2.51
• 2.1.2.52
• 2.1.2.53
• 2.1.2.54
• 2.1.2.55
• 2.1.2.56
• 2.1.2.57
• 2.1.2.58
• 2.1.2.59
• 2.1.2.60
• 2.1.2.61
• 2.1.2.62
• 2.1.2.63
• 2.1.2.64
• 2.1.2.65
• 2.1.2.66
• 2.1.2.67
• 2.1.2.68
• 2.1.2.69
• 2.1.2.70
• 2.1.2.71
• 2.1.2.72
• 2.1.2.73

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion