The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in...

Vulnerability Description

The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango 1.28.3, Firefox, and other products, does not verify that memory reallocations succeed, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via crafted OpenType font data that triggers use of an incorrect index.

References

• http://www.ubuntu.com/usn/USN-1082-1
• http://secunia.com/advisories/43578
• http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9
• https://bugzilla.novell.com/show_bug.cgi?id=672502
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:040
• http://www.vupen.com/english/advisories/2011/0543
• http://www.vupen.com/english/advisories/2011/0555
• http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
• https://bugzilla.redhat.com/show_bug.cgi?id=678563
• http://www.vupen.com/english/advisories/2011/0558
• http://secunia.com/advisories/43800
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65770
• https://build.opensuse.org/request/show/63070
• http://www.vupen.com/english/advisories/2011/0683
• http://securitytracker.com/id?1025145
• https://bugzilla.mozilla.org/show_bug.cgi?id=606997
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056065.html
• http://secunia.com/advisories/43559
• http://secunia.com/advisories/43572
• http://www.vupen.com/english/advisories/2011/0584
• http://www.securityfocus.com/bid/46632
• http://www.redhat.com/support/errata/RHSA-2011-0309.html
• http://www.debian.org/security/2011/dsa-2178