The decompression implementation in the Imf::hufUncompress function in OpenEXR 1.2.2 and 1.6.1 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger a free of an uninitialized pointer.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-1721
• https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01286.html
• https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01290.html
• http://lists.apple.com/archives/security-announce/2009/Aug/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00000.html
• http://release.debian.org/proposed-updates/stable_diffs/openexr_1.6.1-3%2Blenny3.debdiff
• http://secunia.com/advisories/36030
• http://secunia.com/advisories/36032
• http://secunia.com/advisories/36096
• http://secunia.com/advisories/36123
• http://secunia.com/advisories/36753
• http://security.debian.org/pool/updates/main/o/openexr/openexr_1.2.2-4.3+etch2.diff.gz
• http://security.debian.org/pool/updates/main/o/openexr/openexr_1.6.1-3+lenny3.diff.gz
• http://support.apple.com/kb/HT3757
• http://www.debian.org/security/2009/dsa-1842
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:190
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:191
• http://www.securityfocus.com/bid/35838
• http://www.securitytracker.com/id?1022674
• http://www.ubuntu.com/usn/USN-831-1
• http://www.us-cert.gov/cas/techalerts/TA09-218A.html
• http://www.vupen.com/english/advisories/2009/2035
• http://www.vupen.com/english/advisories/2009/2172