CVE-2019-13115

In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 97%
VendorProductVersion
libssh2libssh2
𝑥
< 1.9.0
debiandebian_linux
8.0
debiandebian_linux
9.0
netappcloud_backup
-
netappe-series_santricity_os_controller
11.0.0 ≤
𝑥
≤ 11.70.1
netappontap_select_deploy_administration_utility
-
f5traffix_systems_signaling_delivery_controller
5.0.0 ≤
𝑥
≤ 5.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libssh2
bullseye
1.9.0-2+deb11u1
fixed
bookworm
1.10.0-3
fixed
sid
1.11.1-1
fixed
trixie
1.11.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libssh2
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
ignored
focal
needed
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needed
xenial
Fixed 1.5.0-2ubuntu0.1+esm1
released
trusty
Fixed 1.4.3-2ubuntu0.2+esm2
released
References