CVE-2019-3860 Information disclosure in libssh2

Medium 5.0 Published Updated

A remote attacker can cause denial of service or read client memory via out-of-bounds read in libssh2 SFTP packet parsing.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-3860?

CVE-2019-3860 is a medium-severity vulnerability in Debian Debian Linux, published on 25 Mar 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads 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.

Weakness: CWE-125

Which versions are affected by CVE-2019-3860?

It affects 4 products.

Linux distribution packages (27)
libssh2_org SUSE:Enterprise Storage 4All versions1.4.3-20.9.1
libssh2_org SUSE:Enterprise Storage 5All versions1.4.3-20.9.1
libssh2_org SUSE:HPE Helion OpenStack 8All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Desktop 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Desktop 12 SP4All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Point of Sale 11 SP3All versions1.2.9-4.2.12.11.1
libssh2_org SUSE:Linux Enterprise Server 11 SP4-LTSSAll versions1.4.3-17.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP1-LTSSAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP2-BCLAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP2-LTSSAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP3-BCLAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP3-LTSSAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP3-LTSSAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12 SP4All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server 12-LTSSAll versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 SP1All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 SP2All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Server for SAP Applications 12 SP4All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Software Development Kit 12 SP3All versions1.4.3-20.9.1
libssh2_org SUSE:Linux Enterprise Software Development Kit 12 SP4All versions1.4.3-20.9.1
libssh2_org SUSE:OpenStack Cloud 7All versions1.4.3-20.9.1
libssh2_org SUSE:OpenStack Cloud 8All versions1.4.3-20.9.1
libssh2_org SUSE:OpenStack Cloud Crowbar 8All versions1.4.3-20.9.1

Products include Debian Debian Linux, Libssh2 Libssh2, Netapp Ontap Select Deploy Administration Utility, Opensuse Leap.

How do I fix CVE-2019-3860?

Upgrade to a fixed version.

Is CVE-2019-3860 being exploited?

There is no known exploitation of CVE-2019-3860 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2019-3860, DEBIAN-CVE-2019-3860, DLA-1730-4, GHSA-fq9v-3w7w-rvm2, SUSE-SU-2019:14098-1, SUSE-SU-2019:14099-1 and 3 more.

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