CVE-2020-10745 — Uncontrolled Resource Consumption in Samba

CWE-400 — Uncontrolled Resource Consumption10 documents8 sources
Severity
7.5HIGHNVD
OSV6.5
EPSS
19.7%
top 4.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
SambaDebian LinuxFedoraproject Fedora+1 more
Timeline
PublishedJul 7
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶NVDsamba/samba4.0.0 — 4.10.17+2
▶Debiansamba/samba< 2:4.12.5+dfsg-1+3
▶Ubuntusamba/samba< 2:4.3.11+dfsg-0ubuntu0.16.04.28+3
▶CVEListV5samba/sambaAll Samba versions before 4.10.17, before 4.11.11 and before 4.12.4
▶NVDopensuse/leap15.1, 15.2+1

Also affects: Debian Linux 9.0, Fedora 31

🔴Vulnerability Details

4
GHSA
GHSA-77pj-5756-vfx3: A flaw was found in all Samba versions before 4↗2022-05-24
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OSV
CVE-2020-10745: A flaw was found in all Samba versions before 4↗2020-07-07
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CVEList
CVE-2020-10745: A flaw was found in all Samba versions before 4↗2020-07-07
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OSV
samba vulnerabilities↗2020-07-02
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📋Vendor Advisories

3
Red Hat
samba: Parsing and packing of NBT and DNS packets can consume excessive CPU↗2020-07-02
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Ubuntu
Samba vulnerabilities↗2020-07-02
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Debian
CVE-2020-10745: samba - A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before...↗2020
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💬Community

2
Bugzilla
CVE-2020-10745 samba: Parsing and packing of NBT and DNS packets can consume excessive CPU [fedora-all]↗2020-07-02
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Bugzilla
CVE-2020-10745 samba: Parsing and packing of NBT and DNS packets can consume excessive CPU↗2020-06-22
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CVE-2020-10745 — Uncontrolled Resource Consumption | cvebase