high
7.8
CWE
400
Advisory Published
CVE Published
Updated

CVE-2020-10745

First published: Mon Jun 22 2020(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Samba Samba>=4.0.0<4.10.17
Samba Samba>=4.11.0<4.11.11
Samba Samba>=4.12.0<4.12.4
Fedoraproject Fedora=31
openSUSE Leap=15.1
openSUSE Leap=15.2
Debian Debian Linux=9.0
ubuntu/samba<2:4.11.6+dfsg-0ubuntu1.3
2:4.11.6+dfsg-0ubuntu1.3
ubuntu/samba<2:4.7.6+dfsg~ubuntu-0ubuntu2.17
2:4.7.6+dfsg~ubuntu-0ubuntu2.17
ubuntu/samba<2:4.10.7+dfsg-0ubuntu2.6
2:4.10.7+dfsg-0ubuntu2.6
ubuntu/samba<2:4.3.11+dfsg-0ubuntu0.14.04.20+
2:4.3.11+dfsg-0ubuntu0.14.04.20+
ubuntu/samba<4.10.17<4.11.10<4.12.4
4.10.17
4.11.10
4.12.4
ubuntu/samba<2:4.3.11+dfsg-0ubuntu0.16.04.28
2:4.3.11+dfsg-0ubuntu0.16.04.28
redhat/samba<4.10.17
4.10.17
redhat/samba<4.11.11
4.11.11
redhat/samba<4.12.4
4.12.4
debian/samba<=2:4.9.5+dfsg-5+deb10u3<=2:4.9.5+dfsg-5+deb10u4
2:4.13.13+dfsg-1~deb11u5
2:4.17.12+dfsg-0+deb12u1
2:4.19.4+dfsg-3

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1849491;

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-10745?

    CVE-2020-10745 is a vulnerability found in all Samba versions before 4.10.17, before 4.11.11, and before 4.12.4, which allows a remote attacker to cause the Samba server to consume excessive CPU use, resulting in a denial of service.

  • What is the severity of CVE-2020-10745?

    The severity of CVE-2020-10745 is high with a CVSS score of 7.5.

  • How does CVE-2020-10745 affect Samba?

    CVE-2020-10745 affects all Samba versions before 4.10.17, before 4.11.11, and before 4.12.4.

  • How can I fix CVE-2020-10745?

    To fix CVE-2020-10745, you should update your Samba software to version 4.10.17 or later, 4.11.11 or later, or 4.12.4 or later.

  • Where can I find more information about CVE-2020-10745?

    You can find more information about CVE-2020-10745 in the references provided: [link1], [link2], [link3].

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