Integer underflow in the unlzw function in unlzw.c in gzip before 1.4 on 64-bit platforms, as used in ncompress and probably others, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted archive that uses LZW compression, leading to an array index error.
git.savannah.gnu.org/cgit/gzip.git/commit/?id=a3db5806d012082b9e25cc36d09f19cd736a468f
itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02286083
kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
lists.opensuse.org/opensuse-security-announce/2010-01/msg00009.html
ncompress.sourceforge.net/#status
savannah.gnu.org/forum/forum.php?forum_id=6153
secunia.com/advisories/38220
secunia.com/advisories/38223
secunia.com/advisories/38225
secunia.com/advisories/38232
secunia.com/advisories/40551
secunia.com/advisories/40655
secunia.com/advisories/40689
securitytracker.com/id?1023490
support.apple.com/kb/HT4435
www.debian.org/security/2010/dsa-1974
www.debian.org/security/2010/dsa-2074
www.mandriva.com/security/advisories?name=MDVSA-2010:019
www.mandriva.com/security/advisories?name=MDVSA-2010:020
www.mandriva.com/security/advisories?name=MDVSA-2011:152
www.osvdb.org/61869
www.redhat.com/support/errata/RHSA-2010-0061.html
www.ubuntu.com/usn/USN-889-1
www.vupen.com/english/advisories/2010/0185
www.vupen.com/english/advisories/2010/1796
www.vupen.com/english/advisories/2010/1872
bugzilla.redhat.com/show_bug.cgi?id=554418
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10546
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7511
rhn.redhat.com/errata/RHSA-2010-0095.html