CVE-2019-3860

Severity: critical (CVSS 9.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-03-25 · updated 2026-10-14
Weakness: CWE-125

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.

Affected products

Debian Linux: 8.0
libssh2: from 0.3 through 1.8.0
NetApp ONTAP Select Deploy administration utility: all versions
openSUSE Leap: 15.0, 42.3

References

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00072.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3860
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
https://lists.debian.org/debian-lts-announce/2019/07/msg00028.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
https://seclists.org/bugtraq/2019/Apr/25
https://security.netapp.com/advisory/ntap-20190327-0005/
https://www.debian.org/security/2019/dsa-4431
https://www.libssh2.org/CVE-2019-3860.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Get alerted when CVE-2019-3860 or the next vulnerability affects your stack