CVE-2023-3347

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-3347
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3347.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-3347
Related
Published
2023-07-20T15:15:11Z
Modified
2024-09-18T03:25:31.240606Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and server, affecting the integrity of the data.

References

Affected packages

Debian:12 / samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.17.10+dfsg-0+deb12u1

Affected versions

2:4.*

2:4.17.8+dfsg-2
2:4.17.9+dfsg-0+deb12u1
2:4.17.9+dfsg-0+deb12u2
2:4.17.9+dfsg-0+deb12u3~bpo11+1
2:4.17.9+dfsg-0+deb12u3
2:4.17.10+dfsg-0+deb12u1~bpo11+1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / samba

Package

Name
samba
Purl
pkg:deb/debian/samba?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.18.5+dfsg-1

Affected versions

2:4.*

2:4.17.8+dfsg-2
2:4.18.0~rc1+dfsg-1exp
2:4.18.0~rc2+dfsg-1
2:4.18.0~rc3+dfsg-1
2:4.18.0~rc4+dfsg-1
2:4.18.0+dfsg-1~exp1
2:4.18.1+dfsg-1~exp1
2:4.18.2+dfsg-1
2:4.18.3+dfsg-1
2:4.18.3+dfsg-2
2:4.18.3+dfsg-3
2:4.18.4+dfsg-1
2:4.18.4+dfsg-2~bpo12+1
2:4.18.4+dfsg-2

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Git / github.com/samba-team/samba

Affected ranges

Type
GIT
Repo
https://github.com/samba-team/samba
Events

Affected versions

ldb-2.*

ldb-2.6.2

samba-4.*

samba-4.17.0
samba-4.17.1
samba-4.17.2
samba-4.17.3
samba-4.17.4
samba-4.17.5
samba-4.17.6
samba-4.17.7
samba-4.17.8
samba-4.17.9