CVE-2018-20764
Critical
Description
A buffer overflow exists in HelpSystems tcpcrypt on Linux, used for BoKS encrypted telnet through BoKS version 6.7.1. Since tcpcrypt is setuid, exploitation leads to privilege escalation.
SeverityCritical
CVSS9.8
Exploit probability—
ProductHelpsystems Boks
PublishedFeb 8, 2019
First seenFeb 8, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| helpsystems boks | 6.6.0 ≤ v ≤ 6.7.1 | — |
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