CVE-2019-3863

EUVD-2019-13477
A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
redhatCNA
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 92%
Affected Products (NVD)
VendorProductVersion
libssh2libssh2
𝑥
< 1.8.1
debiandebian_linux
8.0
netappontap_select_deploy_administration_utility
-
opensuseleap
15.0
opensuseleap
42.3
redhatenterprise_linux_desktop
7.0
redhatenterprise_linux_server
7.0
redhatenterprise_linux_server_aus
7.6
redhatenterprise_linux_server_eus
7.6
redhatenterprise_linux_server_tus
7.6
redhatenterprise_linux_workstation
7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libssh2
bookworm
1.10.0-3
fixed
bullseye
1.9.0-2+deb11u1
fixed
sid
1.11.1-1
fixed
trixie
1.11.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libssh2
bionic
needed
cosmic
ignored
disco
not-affected
eoan
not-affected
focal
not-affected
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
Fixed 1.4.3-2ubuntu0.2+esm2
released
xenial
Fixed 1.5.0-2ubuntu0.1+esm1
released
References