Integer Overflow Vulnerability in libssh2 Affects Multiple Vendors
CVE-2019-3856
7.5HIGH
What is CVE-2019-3856?
An integer overflow vulnerability in libssh2 allows a remote attacker to create malicious keyboard prompts that, when handled by a client, can result in an out-of-bounds write. This could lead to arbitrary code execution on the client’s system. Users connecting to compromised SSH servers are particularly at risk, necessitating immediate updates to versions earlier than 1.8.1 to mitigate potential exploitation.
Affected Version(s)
libssh2 1.8.1
References
CVSS V3.1
Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
CVSS V3.0
Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved
