CVE-2016-2119

libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 76%
VendorProductVersion
sambasamba
4.0.0 ≤
𝑥
< 4.2.14
sambasamba
4.3.0 ≤
𝑥
< 4.3.11
sambasamba
4.4.0 ≤
𝑥
< 4.4.5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
samba
bullseye (security)
2:4.13.13+dfsg-1~deb11u6
fixed
bullseye
2:4.13.13+dfsg-1~deb11u6
fixed
wheezy
not-affected
bookworm
2:4.17.12+dfsg-0+deb12u1
fixed
bookworm (security)
2:4.17.12+dfsg-0+deb12u1
fixed
sid
2:4.21.1+dfsg-2
fixed
trixie
2:4.21.1+dfsg-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
samba
zesty
not-affected
yakkety
not-affected
xenial
Fixed 2:4.3.11+dfsg-0ubuntu0.16.04.1
released
wily
ignored
trusty
Fixed 2:4.3.11+dfsg-0ubuntu0.14.04.1
released
precise
not-affected
samba4
zesty
dne
yakkety
dne
xenial
dne
wily
dne
trusty
dne
precise
ignored