CVE-2020-14303

Home/CVE/A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba

CVE

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.

HIGH · CVSS 7.5 EPSS 0.26364

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-834Excessive Iteration

▤

Affected Products & Versions

samba>= 4.10.0 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
canonical ubuntu 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 NVD06 Jul 2020 · 06:15 PM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

⚑

Vendor Advisories

suse-csafopenSUSE-SU-2024:11365-1
suse-csafSUSE-SU-2020:2673-1
suse-csafopenSUSE-SU-2020:1313-1
usnUSN-4454-2
usnUSN-4454-1
Show all 9 vendor advisoriessuse-csafopenSUSE-SU-2020:1023-1
suse-csafopenSUSE-SU-2020:0984-1
suse-csafSUSE-SU-2020:1948-1
suse-csafSUSE-SU-2020:1913-1

🔗

References & Sources

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=1851298

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/

Show all 11 references

https://security.gentoo.org/glsa/202007-15Third Party Advisory

https://security.netapp.com/advisory/ntap-20200709-0003/Third Party Advisory

https://usn.ubuntu.com/4454-1/Third Party Advisory

https://usn.ubuntu.com/4454-2/Third Party Advisory

https://www.samba.org/samba/security/CVE-2020-14303.htmlVendor Advisory

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