CVE-2021-23192

A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
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:H/A:N
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
VendorProductVersion
sambasamba
4.10.0 ≤
𝑥
< 4.13.14
sambasamba
4.14.0 ≤
𝑥
< 4.14.10
sambasamba
4.15.0 ≤
𝑥
< 4.15.2
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
buster
not-affected
stretch
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
jammy
Fixed 2:4.13.14+dfsg-0ubuntu1
released
impish
Fixed 2:4.13.14+dfsg-0ubuntu0.21.10.1
released
hirsute
Fixed 2:4.13.14+dfsg-0ubuntu0.21.04.1
released
focal
Fixed 2:4.13.14+dfsg-0ubuntu0.20.04.1
released
bionic
not-affected
xenial
not-affected
trusty
not-affected
Common Weakness Enumeration
References
https://bugzilla.redhat.com/show_bug.cgi?id=2019666
https://security.gentoo.org/glsa/202309-06
https://ubuntu.com/security/CVE-2021-23192
https://www.samba.org/samba/security/CVE-2021-23192.html
https://bugzilla.redhat.com/show_bug.cgi?id=2019666
https://security.gentoo.org/glsa/202309-06
https://ubuntu.com/security/CVE-2021-23192
https://www.samba.org/samba/security/CVE-2021-23192.html