CVE-2011-0064

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.

6.8

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 2.56% Top 20%

Vendor Advisory ubuntu.com Vendor Advisory mandriva.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com

Affected: n/a n/a

References

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

Frequently Asked Questions

What is the severity of CVE-2011-0064?: CVE-2011-0064 has been scored as a medium severity vulnerability.
How to fix CVE-2011-0064?: To fix CVE-2011-0064, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-0064 being actively exploited in the wild?: It is possible that CVE-2011-0064 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.