USN-5745-2: shadow Ubuntu
Vulnerability summary
USN-5745-2 is a vulnerability in shadow Ubuntu with no CVSS score yet.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 29-11-2022PublishedVulnerability first disclosed.
- 29-06-2026Last modifiedVulnerability information updated.
Description
shadow regression USN-5745-1 fixed vulnerabilities in shadow. Unfortunately that update introduced a regression that caused useradd to behave incorrectly in Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. This update reverts the security fix pending further investigation. We apologize for the inconvenience. Original advisory details: Florian Weimer discovered that shadow was not properly copying and removing user directory trees, which could lead to a race condition. A local attacker could possibly use this issue to setup a symlink attack and alter or remove directories without authorization.
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu1 product
- shadow< 1:4.1.5.1-1ubuntu9.5+esm3 | < 1:4.2-3.1ubuntu5.5+esm3 | < 1:4.5-1ubuntu2.5 | < 1:4.8.1-1ubuntu5.20.04.4
1 vendor · 1 product