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fastjar: Directory traversal


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201209-21 / fastjar
Release Date September 28, 2012
Latest Revision September 28, 2012: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-arch/fastjar < 0.98-r1 >= 0.98-r1 All supported architectures

Related bugreports: #325557


Two directory traversal vulnerabilities have been found in fastjar, allowing remote attackers to create or overwrite arbitrary files.

2.  Impact Information


fastjar is a Java archiver written in C.


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


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

3.  Resolution Information


There is no known workaround at this time.


All fastjar users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References


Page updated September 28, 2012

Summary: This is a Gentoo Linux Security Advisory

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