CVE-2015-0817

Mozilla Firefox Bounds Check Elimination Remote Code Execution Vulnerability

Severity Score

6.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The asm.js implementation in Mozilla Firefox before 36.0.3, Firefox ESR 31.x before 31.5.2, and SeaMonkey before 2.33.1 does not properly determine the cases in which bounds checking may be safely skipped during JIT compilation and heap access, which allows remote attackers to read or write to unintended memory locations, and consequently execute arbitrary code, via crafted JavaScript.

La implementación asm.js en Mozilla Firefox anterior a 36.0.3, Firefox ESR 31.x anterior a 31.5.2, y SeaMonkey anterior a 2.33.1 no determina correctamente los casos en los que los rangos de comprobación pueden saltase con seguridad durante la compilación JIT y el acceso a la memoria dinámica, lo que permite a atacantes remotos leer o escribir en localizaciones de memoria no intencionadas, y como consecuencia ejecutar código arbitrario, a través de JavaScript manipulado.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of heap access bounds checking. A specially crafted typed array can eliminate bounds checks for heap accesses. An attacker can leverage this vulnerability to execute code under the context of the current process.

*Credits: i1xu1a

CVSS Scores

NISTv2 6.8

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-01-07 CVE Reserved
2015-03-23 CVE Published
2024-02-29 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-17: DEPRECATED: Code
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (15)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html	X_refsource_confirm
http://www.securityfocus.com/bid/73263	Vdb Entry
http://www.securitytracker.com/id/1031958	Vdb Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1145255	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00026.html	2017-01-03
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00029.html	2017-01-03
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00035.html	2017-01-03
http://lists.opensuse.org/opensuse-updates/2015-03/msg00096.html	2017-01-03
http://rhn.redhat.com/errata/RHSA-2015-0718.html	2017-01-03
http://www.debian.org/security/2015/dsa-3201	2017-01-03
http://www.mozilla.org/security/announce/2015/mfsa2015-29.html	2017-01-03
http://www.ubuntu.com/usn/USN-2538-1	2017-01-03
https://security.gentoo.org/glsa/201504-01	2017-01-03
https://access.redhat.com/security/cve/CVE-2015-0817	2015-03-24
https://bugzilla.redhat.com/show_bug.cgi?id=1204362	2015-03-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				<= 36.0.1 Search vendor "Mozilla" for product "Firefox" and version " <= 36.0.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.0 Search vendor "Mozilla" for product "Firefox Esr" and version "31.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.1 Search vendor "Mozilla" for product "Firefox Esr" and version "31.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.1.0 Search vendor "Mozilla" for product "Firefox Esr" and version "31.1.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.1.1 Search vendor "Mozilla" for product "Firefox Esr" and version "31.1.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.2 Search vendor "Mozilla" for product "Firefox Esr" and version "31.2"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.3 Search vendor "Mozilla" for product "Firefox Esr" and version "31.3"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.3.0 Search vendor "Mozilla" for product "Firefox Esr" and version "31.3.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.4 Search vendor "Mozilla" for product "Firefox Esr" and version "31.4"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.5 Search vendor "Mozilla" for product "Firefox Esr" and version "31.5"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				31.5.1 Search vendor "Mozilla" for product "Firefox Esr" and version "31.5.1"		-		Affected
Mozilla Search vendor "Mozilla"		Seamonkey Search vendor "Mozilla" for product "Seamonkey"				<= 2.33.0 Search vendor "Mozilla" for product "Seamonkey" and version " <= 2.33.0"		-		Affected