CVE-2015-5296

EUVD-2015-5273
Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
Affected Products (NVD)
VendorProductVersion
sambasamba
3.2.0 ≤
𝑥
< 4.1.22
sambasamba
4.2.0 ≤
𝑥
< 4.2.7
sambasamba
4.3.0 ≤
𝑥
< 4.3.3
debiandebian_linux
7.0
debiandebian_linux
8.0
canonicalubuntu_linux
12.04
canonicalubuntu_linux
14.04
canonicalubuntu_linux
15.04
canonicalubuntu_linux
15.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
samba
bookworm
2:4.17.12+dfsg-0+deb12u1
fixed
bookworm (security)
2:4.17.12+dfsg-0+deb12u1
fixed
bullseye
2:4.13.13+dfsg-1~deb11u6
fixed
bullseye (security)
2:4.13.13+dfsg-1~deb11u6
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
precise
Fixed 2:3.6.3-2ubuntu2.13
released
trusty
Fixed 2:4.1.6+dfsg-1ubuntu2.14.04.11
released
vivid
Fixed 2:4.1.13+dfsg-4ubuntu3.1
released
wily
Fixed 2:4.1.17+dfsg-4ubuntu3.1
released
xenial
Fixed 2:4.3.3+dfsg-1ubuntu1
released
yakkety
Fixed 2:4.3.3+dfsg-1ubuntu1
released
zesty
Fixed 2:4.3.3+dfsg-1ubuntu1
released
samba4
precise
ignored
trusty
dne
vivid
dne
wily
dne
xenial
dne
yakkety
dne
zesty
dne
References