CVE-2020-27840

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
sambasamba
4.0.0 ≤
𝑥
< 4.12.13
sambasamba
4.13.0 ≤
𝑥
< 4.13.6
sambasamba
4.14.0 ≤
𝑥
< 4.14.1
debiandebian_linux
9.0
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ldb
bullseye (security)
2:2.2.3-2~deb11u2
fixed
bullseye
2:2.2.3-2~deb11u2
fixed
samba
bullseye (security)
unimportant
bullseye
unimportant
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
ldb
groovy
Fixed 2:2.1.4-2ubuntu0.1
released
focal
Fixed 2:2.0.10-0ubuntu0.20.04.3
released
bionic
Fixed 2:1.2.3-1ubuntu0.2
released
xenial
Fixed 2:1.1.24-1ubuntu3.2
released
trusty
Fixed 1:1.1.24-0ubuntu0.14.04.2+esm1
released
samba
groovy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected