CVE-2015-5479

Ubuntu Security Notice USN-2944-1

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ff_h263_decode_mba function in libavcodec/ituh263dec.c in Libav before 11.5 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a file with crafted dimensions.

La función ff_h263_decode_mba en libavcodec/ituh263dec.c en Libav en versiones anteriores a 11.5 permite a atacantes remotos provocar una denegación de servicio (error de división por cero y caída de la aplicación) a través de un archivo con dimensiones manipuladas.

It was discovered that Libav incorrectly handled certain malformed media files. If a user were tricked into opening a crafted media file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-07-10 CVE Reserved
2016-04-05 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-189: Numeric Errors

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/75932	Vdb Entry
https://blogs.gentoo.org/ago/2015/07/16/libav-divide-by-zero-in-ff_h263_decode_mba	Issue Tracking
https://git.libav.org/?p=libav.git%3Ba=commitdiff%3Bh=0a49a62f998747cfa564d98d36a459fe70d3299b	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-updates/2016-06/msg00105.html	2023-11-07
http://www.ubuntu.com/usn/USN-2944-1	2023-11-07
https://libav.org/releases/libav-11.5.changelog	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ubuntu Search vendor "Ubuntu"		Ubuntu Search vendor "Ubuntu" for product "Ubuntu"				12.04 Search vendor "Ubuntu" for product "Ubuntu" and version "12.04"		lts		Affected
Libav Search vendor "Libav"		Libav Search vendor "Libav" for product "Libav"				<= 11.4 Search vendor "Libav" for product "Libav" and version " <= 11.4"		-		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