CANONICALVERIFIED
USN-8857-1: KCoreAddons vulnerability
Checked 5 Oct 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.
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UBUNTU SECURITY NOTICECANONICALVERIFIED
PUBLISHER UPDATE · USN-8857-1
USN-8857-1 release notes and known issues
USN-8857-1: KCoreAddons vulnerability
Scope: Ubuntu. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.
Summary
It was discovered that KCoreAddons incorrectly handled shell argument quoting in KShell::quoteArgs. The parsing did not adequately handle shell metacharacters, which could lead to a shell escape. An attacker could possibly use this issue to execute arbitrary commands in applications that relied on this method to handle user input.
Improvements and security content
- It was discovered that KCoreAddons incorrectly handled shell argument quoting in KShell::quoteArgs. The parsing did not adequately handle shell metacharacters, which could lead to a shell escape. An attacker could possibly use this issue to execute arbitrary commands in applications that relied on this method to handle user input.
Known issues
Publisher statementNot stated. The verified publisher record does not contain a known-issues statement.
Affected products and versions
Products
- Ubuntu
Affected versions
- See the official publisher source for applicability.
Fixed versions or updates
- No fixed version is stated in this record.
Recommended action
Review the official publisher document before deployment.
Lifecycle connections
These links connect the publisher update to related Lifecycle records without treating the update publication date as an end-of-support date.