CVE-2015-7211

Ubuntu Security Notice USN-2833-1

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mozilla Firefox before 43.0 mishandles the # (number sign) character in a data: URI, which allows remote attackers to spoof web sites via unspecified vectors.

Mozilla Firefox en versiones anteriores a 43.0 no maneja correctamente el carácter # (signo numérico) en un data: URI, lo que permite a atacantes remotos suplantar sitios web a través de vectores no especificados.

Andrei Vaida, Jesse Ruderman, Bob Clary, Christian Holler, Jesse Ruderman, Eric Rahm, Robert Kaiser, Harald Kirschner, and Michael Henretty discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. Ronald Crane discovered three buffer overflows through code inspection. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. Various other issues were also addressed.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-09-16 CVE Reserved
2015-12-16 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/79280	Vdb Entry
http://www.securitytracker.com/id/1034426	Vdb Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1221444	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174083.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174253.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2015-12/msg00104.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.html	2018-10-30
http://www.mozilla.org/security/announce/2015/mfsa2015-141.html	2018-10-30
http://www.ubuntu.com/usn/USN-2833-1	2018-10-30
https://security.gentoo.org/glsa/201512-10	2018-10-30

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"				<= 42.0 Search vendor "Mozilla" for product "Firefox" and version " <= 42.0"		-		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
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				42.1 Search vendor "Opensuse" for product "Leap" and version "42.1"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.1 Search vendor "Opensuse" for product "Opensuse" and version "13.1"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2"		-		Affected