CVE-2017-7961

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

The cr_tknzr_parse_rgb function in cr-tknzr.c in libcroco 0.6.11 and 0.6.12 has an "outside the range of representable values of type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CSS file. NOTE: third-party analysis reports "This is not a security issue in my view. The conversion surely is truncating the double into a long value, but there is no impact as the value is one of the RGB components.

** EN DISPUTA ** La función cr_tknzr_parse_rgb en cr-tknzr.c en libcroco 0.6.11 y 0.6.12 tiene un problema de comportamiento no definido de "fuera de rango de valores representables de tipo largo", que podría permitir a atacantes remotos provocar una denegación de servicio (caída de aplicación) o posiblemente tener otro impacto no especificado a través de un archivo CSS manipulado. NOTA: según análisis de terceros "Esto no es un problema de seguridad según mi visión. La conversión seguramente está truncando el valor doble en un valor largo, pero no hay impacto ya que el valor es uno de los componentes RGB".

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

Poc

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2017-04-19 CVE Reserved
2017-04-19 CVE Published
2024-05-01 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior	2024-08-05

URL	Date	SRC
http://openwall.com/lists/oss-security/2017/04/24/2	2024-07-03
https://bugzilla.suse.com/show_bug.cgi?id=1034482	2024-07-03
https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7	2024-07-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00043.html	2024-07-03
https://security.gentoo.org/glsa/201707-13	2024-07-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnome Search vendor "Gnome"		Libcroco Search vendor "Gnome" for product "Libcroco"				0.6.11 Search vendor "Gnome" for product "Libcroco" and version "0.6.11"		-		Affected
Gnome Search vendor "Gnome"		Libcroco Search vendor "Gnome" for product "Libcroco"				0.6.12 Search vendor "Gnome" for product "Libcroco" and version "0.6.12"		-		Affected