CVE-2016-1526

graphite2: Out-of-bounds read vulnerability in TfUtil:LocaLookup

Severity Score

8.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The TtfUtil:LocaLookup function in TtfUtil.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, incorrectly validates a size value, which allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.

La función TtfUtil:LocaLookup en TtfUtil.cpp en Libgraphite en Graphite 2 1.2.4, como se utiliza en Mozilla Firefox en versiones anteriores a 43.0 y Firefox ESR 38.x en versiones anteriores a 38.6.1, valida incorrectamente un valor de tamaño, lo que permite a atacantes remotos obtener información sensible o causar una denegación de servicio (lectura fuera de rango y caída de aplicación) a través de una fuente inteligente Graphite.

A vulnerability has been discovered in Graphite2. An attacker able to trick an unsuspecting user into opening specially crafted font files in an application using Graphite2 could exploit these flaws to cause the application to crash or, potentially, execute arbitrary code with the privileges of the application.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-01-07 CVE Reserved
2016-02-13 CVE Published
2023-09-30 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125: Out-of-bounds Read
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (17)

URL	Tag	Source
http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html	Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	X_refsource_confirm
http://www.securityfocus.com/bid/82991	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177520.html	2018-01-05
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184623.html	2018-01-05
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00052.html	2018-01-05
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00058.html	2018-01-05
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00088.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-0594.html	2018-01-05
http://rhn.redhat.com/errata/RHSA-2016-0695.html	2018-01-05
http://www.debian.org/security/2016/dsa-3479	2018-01-05
http://www.mozilla.org/security/announce/2016/mfsa2016-14.html	2018-01-05
http://www.ubuntu.com/usn/USN-2902-1	2018-01-05
https://security.gentoo.org/glsa/201701-35	2018-01-05
https://security.gentoo.org/glsa/201701-63	2018-01-05
https://access.redhat.com/security/cve/CVE-2016-1526	2016-04-26
https://bugzilla.redhat.com/show_bug.cgi?id=1308590	2016-04-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0.5 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.5"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.1.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.1.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.2.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.2.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.3.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.3.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.4.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.4.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.5.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.5.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.5.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.5.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.5.2 Search vendor "Mozilla" for product "Firefox Esr" and version "38.5.2"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.6.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.6.0"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				<= 38.5.1 Search vendor "Mozilla" for product "Thunderbird" and version " <= 38.5.1"		-		Affected
Sil Search vendor "Sil"		Graphite2 Search vendor "Sil" for product "Graphite2"				1.2.4 Search vendor "Sil" for product "Graphite2" and version "1.2.4"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				22 Search vendor "Fedoraproject" for product "Fedora" and version "22"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				23 Search vendor "Fedoraproject" for product "Fedora" and version "23"		-		Affected