What’s Vulnerable › Vulnerabilities

CVE-2011-0064

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-03-07 · updated 2026-06-16

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.

Affected products

• Gnome Pango: 1.28.3
• Mozilla Firefox: all versions

References

• http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2ed2cd307e7a991346faee164e70d9
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056065.html
• http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
• http://secunia.com/advisories/43559
• http://secunia.com/advisories/43572
• http://secunia.com/advisories/43578
• http://secunia.com/advisories/43800
• http://securitytracker.com/id?1025145
• http://www.debian.org/security/2011/dsa-2178
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:040
• http://www.redhat.com/support/errata/RHSA-2011-0309.html
• http://www.securityfocus.com/bid/46632

Get alerted when CVE-2011-0064 or the next vulnerability affects your stack