CVE-2023-3347
- Source
- https://cve.org/CVERecord?id=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
- Downstream
- Related
- Published
- 2023-07-20T15:15:11.940Z
- Modified
- 2026-04-16T04:37:14.644011235Z
- 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
-
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
- https://security.netapp.com/advisory/ntap-20230731-0010/
- https://www.debian.org/security/2023/dsa-5477
- https://access.redhat.com/errata/RHSA-2023:4325
- https://access.redhat.com/errata/RHSA-2023:4328
- https://access.redhat.com/security/cve/CVE-2023-3347
- https://www.samba.org/samba/security/CVE-2023-3347.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2222792
Affected packages
Git / github.com/samba-team/samba
Affected ranges
- Type
- GIT
- Repo
- https://github.com/samba-team/samba
- Events
-
IntroducedFixedIntroducedFixedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "4.17.0" }, { "fixed": "4.17.10" }, { "introduced": "4.18.0" }, { "fixed": "4.18.5" }, { "introduced": "0" }, { "last_affected": "3.0" } ] }
Affected versions
ldb-2.*
ldb-2.6.2
ldb-2.7.2
samba-4.*
samba-4.17.0
samba-4.17.1
samba-4.17.2
samba-4.17.4
samba-4.17.5
samba-4.17.6
samba-4.17.7
samba-4.17.8
samba-4.17.9
samba-4.18.0
samba-4.18.1
samba-4.18.2
samba-4.18.3
samba-4.18.4
Other
samba-misc-tags/samba-3-0-split
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-3347.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "9.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "38"
}
]
}
]