Source: busybox X-Debbugs-CC: [email protected] Severity: important Tags: security
Hi, The following vulnerability was published for busybox. CVE-2026-108119[0]: | A flaw was found in busybox. The tar applet's deferred link-creation | handling for symlink and hardlink entries with unsafe-looking | targets does not validate that the resolved destination remains | inside the extraction directory once the deferred link is created. | An attacker can craft a tar archive using a symlink target of | exactly '..' combined with a deferred hardlink to create a new file | outside the extraction directory, or reuse an extraction directory | across two archives to replace an existing file outside it. If the | archive is extracted with elevated privileges, this flaw can lead to | privilege escalation or arbitrary code execution. https://bugzilla.redhat.com/show_bug.cgi?id=2548611 If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-108119 https://www.cve.org/CVERecord?id=CVE-2026-108119 Please adjust the affected versions in the BTS as needed.
