Fedora 14 : pango-1.28.1-5.fc14 (2011-3194)
Medium Nessus Plugin ID 52696
SynopsisThe remote Fedora host is missing a security update.
DescriptionIt was discovered that pango did not check for memory reallocation failures in hb_buffer_ensure() function. This could trigger a NULL pointer dereference in hb_buffer_add_glyph(), where possibly untrusted input is used as an index used for accessing members of the incorrectly reallocated array, resulting in the use of NULL address as the base array address. This can result in application crash or, possibly, code execution.
It was demonstrated that it's possible to trigger this flaw in Firefox via a specially crafted web page.
Mozilla bug report (currently not public):
Fix in the harfbuzz git:
Red Hat would like to thank Mozilla Security Team for reporting this issue.
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected pango package.