CVE-2011-0064

MEDIUM

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://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

http://www.ubuntu.com/usn/USN-1082-1

http://www.vupen.com/english/advisories/2011/0543

http://www.vupen.com/english/advisories/2011/0555

http://www.vupen.com/english/advisories/2011/0558

http://www.vupen.com/english/advisories/2011/0584

http://www.vupen.com/english/advisories/2011/0683

https://bugzilla.mozilla.org/show_bug.cgi?id=606997

https://bugzilla.novell.com/show_bug.cgi?id=672502

https://bugzilla.redhat.com/show_bug.cgi?id=678563

https://build.opensuse.org/request/show/63070

https://exchange.xforce.ibmcloud.com/vulnerabilities/65770

Details

Source: MITRE

Published: 2011-03-07

Updated: 2017-08-17

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM