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CVE-2019-3811

Status Candidate

Overview

A vulnerability was found in sssd. If a user was configured with no home directory set, sssd would return '/' (the root directory) instead of '' (the empty string / no home directory). This could impact services that restrict the user's filesystem access to within their home directory through chroot() etc. All versions before 2.1 are vulnerable.

Related Files

Ubuntu Security Notice USN-5067-1
Posted Sep 8, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5067-1 - Jakub Hrozek discovered that SSSD incorrectly handled file permissions. A local attacker could possibly use this issue to read the sudo rules available for any user. This issue only affected Ubuntu 18.04 LTS. It was discovered that SSSD incorrectly handled Group Policy Objects. When SSSD is configured with too strict permissions causing the GPO to not be readable, SSSD will allow all authenticated users to login instead of being denied, contrary to expectations. This issue only affected Ubuntu 18.04 LTS. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2018-10852, CVE-2018-16838, CVE-2019-3811, CVE-2021-3621
SHA-256 | 57bb124cbecf36bdb8d4f0c37b6abc7cd806b1d2b852b746eea1be28e8aa2a43
Red Hat Security Advisory 2019-2177-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2177-01 - The System Security Services Daemon service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch and the Pluggable Authentication Modules interfaces toward the system, and a pluggable back-end system to connect to multiple different account sources.

tags | advisory, remote
systems | linux, redhat
advisories | CVE-2018-16838, CVE-2019-3811
SHA-256 | 17521e7b7450fa21699fd9253a26117e0161ee713a65d4d936107eff6c44a89a
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