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CVE-2020-14303

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4454-2
Posted Aug 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4454-2 - USN-4454-1 fixed a vulnerability in Samba. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Martin von Wittich and Wilko Meyer discovered that Samba incorrectly handled certain empty UDP packets when being used as a AD DC NBT server. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, udp
systems | linux, ubuntu
advisories | CVE-2020-14303
SHA-256 | 113ab2f64b0fb02bdde59a5d23d991cdb9f82d85a2fd26164a620e2b030af04b
Ubuntu Security Notice USN-4454-1
Posted Aug 10, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4454-1 - Martin von Wittich and Wilko Meyer discovered that Samba incorrectly handled certain empty UDP packets when being used as a AD DC NBT server. A remote attacker could possibly use this issue to cause Samba to crash, resulting in a denial of service.

tags | advisory, remote, denial of service, udp
systems | linux, ubuntu
advisories | CVE-2020-14303
SHA-256 | 35d0283a24cb4d861e2191d597f6e9cd041aa7cda3233d7f76da6fbd4f2158e1
Gentoo Linux Security Advisory 202007-15
Posted Jul 27, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202007-15 - Multiple vulnerabilities have been found in Samba, the worst of which could result in a Denial of Service condition. Versions less than 4.11.11 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2020-10700, CVE-2020-10704, CVE-2020-10730, CVE-2020-10745, CVE-2020-10760, CVE-2020-14303
SHA-256 | 4275bc4d2348b810536150599cc7e3695e2139fbb81de4b8d249fec185fef22e
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