CVE-2020-14002

EUVD-2020-6169
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 72%
Affected Products (NVD)
VendorProductVersion
puttyputty
0.68 ≤
𝑥
≤ 0.73
netapponcommand_unified_manager_core_package
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
putty
bookworm
0.78-2+deb12u2
fixed
bookworm (security)
0.78-2+deb12u1
fixed
bullseye
0.74-1+deb11u2
fixed
bullseye (security)
0.74-1+deb11u1
fixed
jessie
no-dsa
sid
0.81-3
fixed
stretch
no-dsa
trixie
0.81-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
putty
bionic
needs-triage
eoan
ignored
focal
needs-triage
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
dne
xenial
needs-triage