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CVE-2020-14323

Status Candidate

Overview

A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.

Related Files

Red Hat Security Advisory 2021-3723-01
Posted Oct 5, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3723-01 - Red Hat Gluster Storage is a software only scale-out storage solution that provides flexible and affordable unstructured data storage. It unifies data storage and infrastructure, increases performance, and improves availability and manageability to meet enterprise-level storage challenges.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-1472, CVE-2021-20254
SHA-256 | 3e4800b5e3e4d8a2012f3bf9ae908f590535ab2f963150c4f4cc8a7501feb9b3
Red Hat Security Advisory 2021-1647-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1647-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Issues addressed include a double free vulnerability.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-1472
SHA-256 | 291e9afaaa62758a1a6d7b1aaa3138d21ed18a8256ace47c8f89937c64380841
Ubuntu Security Notice USN-4931-1
Posted May 4, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4931-1 - Steven French discovered that Samba incorrectly handled ChangeNotify permissions. A remote attacker could possibly use this issue to obtain file name information. Bas Alberts discovered that Samba incorrectly handled certain winbind requests. A remote attacker could possibly use this issue to cause winbind to crash, resulting in a denial of service. Francis Brosnan Blázquez discovered that Samba incorrectly handled certain invalid DNS records. A remote attacker could possibly use this issue to cause the DNS server to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-14383, CVE-2021-20254
SHA-256 | c018d6cadb1b0077576c936467d8f98c41592292610ed1d41f0ef94abcf75c25
Gentoo Linux Security Advisory 202012-24
Posted Dec 24, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202012-24 - Multiple vulnerabilities have been found in Samba, the worst of which could result in a Denial of Service condition. Versions less than 4.12.9 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-14383, CVE-2020-1472
SHA-256 | 09eede95a802e9406ba2349f3ea9a0665ce582d50fcd93512059a1e324ed54bc
Red Hat Security Advisory 2020-5439-01
Posted Dec 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5439-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Issues addressed include a memory leak vulnerability.

tags | advisory, protocol, memory leak
systems | linux, redhat
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-1472
SHA-256 | 1cd908b159ef1b76221d2e9d0d69adbb11c5ecc9cafde8a5307b43268d43d893
Ubuntu Security Notice USN-4611-1
Posted Nov 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4611-1 - Steven French discovered that Samba incorrectly handled ChangeNotify permissions. A remote attacker could possibly use this issue to obtain file name information. Bas Alberts discovered that Samba incorrectly handled certain winbind requests. A remote attacker could possibly use this issue to cause winbind to crash, resulting in a denial of service. Francis Brosnan Blázquez discovered that Samba incorrectly handled certain invalid DNS records. A remote attacker could possibly use this issue to cause the DNS server to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2020-14318, CVE-2020-14323, CVE-2020-14383
SHA-256 | 50b6a7c27f354ac0c1d8d77028b90901e29fe315e929406d2422494f2552bd73
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