Home/CVE/A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios
CVE

CVE-2020-10745

A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios

A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability.

HIGH · CVSS 7.5 EPSS 0.19658
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-400Uncontrolled Resource Consumption
▤

Affected Products & Versions

6
samba>= 4.0.0 and < 4.10.17
samba>= 4.11.0 and < 4.11.11
samba>= 4.12.0 and < 4.12.4
fedoraproject fedoraall versions
opensuse leapall versions
debian linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jul 2020 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

13
suse-csafopenSUSE-SU-2024:11365-1
suse-csafSUSE-SU-2020:2673-1
suse-csafopenSUSE-SU-2020:1313-1
suse-csafSUSE-SU-2020:2312-1
suse-csafSUSE-SU-2020:2065-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1849491
https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
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