fastjar: Directory traversal

Background

fastjar is a Java archiver written in C.

Description

Two directory traversal vulnerabilities have been discovered in fastjar. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could entice a user to open a specially crafted JAR file, possibly resulting in the creation or truncation of arbitrary files.

Workaround

There is no known workaround at this time.

Resolution

All fastjar users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/fastjar-0.98-r1"