#VU21394 Stack-based buffer overflow in Netskope client - CVE-2019-10882

Vulnerability identifier: #VU21394

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-10882

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Netskope client
Client/Desktop applications / Software for archiving

Vendor: Netskope

Description

The vulnerability allows a local user to cause a denial of service (DoS) attack on the target system.

The vulnerability exists due to a boundary error in the "doHandshakefromServer" function. A local authenticated user can trigger stack-based buffer overflow and crash the target application.

This vulnerability affects the following versions:

• Netskope client v57 before 57.2.0.219
• Netskope client v60 before 60.2.0.214

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Netskope client: before 57.2.0.219

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External links
https://airbus-seclab.github.io/advisories/netskope.html
https://support.netskope.com/hc/article_attachments/360033003553/Sprint_62_Release_Notes.pdf
https://support.netskope.com/hc/en-us/articles/360014589894-Netskope-Client

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.