CVE-2019-3862

libssh2: Out-of-bounds memory comparison with specially crafted message channel request

Published Mar 20, 2019 CVSS 3.0 · 7.3 High EPSS 7.9% KEV · Not listed
Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1730-1 libssh2 security update
Debian DSA Debian DSA DSA-4431-1 libssh2 security update
EUVD EUVD EUVD-2019-13476 An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Ubuntu USN Ubuntu USN USN-5308-1 libssh2 vulnerabilities