CVE-2015-6818

Severity Score

7.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (aka image header) chunk in a PNG image, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted image with two or more of these chunks.

Vulnerabilidad en la función decode_ihdr_chunk en libavcodec/pngdec.c en FFmpeg en versiones anteriores a 2.7.2, no impone la singularidad del fragmento IHDR (también conocida como cabecera de imagen) en una imagen PNG, lo que permite a atacantes remotos causar una denegación de servicio (acceso a array fuera de rango) o posiblemente tener otro impacto no especificado a través de una imagen manipulada con dos o más de estos fragmentos.

*Credits: N/A

CVSS Scores

NISTv2 7.5

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-09-05 CVE Reserved
2015-09-06 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-17: DEPRECATED: Code

CAPEC

References (5)

URL	Tag	Source
http://ffmpeg.org/security.html	X_refsource_confirm
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=47f4e2d8960ca756ca153ab8e3e93d80449b8c91	X_refsource_confirm
http://www.securitytracker.com/id/1033483	Vdb Entry
https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://www.ubuntu.com/usn/USN-2944-1	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ffmpeg Search vendor "Ffmpeg"		Ffmpeg Search vendor "Ffmpeg" for product "Ffmpeg"				<= 2.7.1 Search vendor "Ffmpeg" for product "Ffmpeg" and version " <= 2.7.1"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		lts		Affected