Security researcher Gustavo Grieco reported a buffer underflow in libjar triggered through a maliciously crafted ZIP format file. This results in a potentially exploitable crash. External Reference: https://www.mozilla.org/security/announce/2015/mfsa2015-128.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Gustavo Grieco as the original reporter.
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 5 Via RHSA-2015:1982 https://rhn.redhat.com/errata/RHSA-2015-1982.html