CVE-2020-21596

2021-09-1600:00:00

ubuntu.com

vulnerability

libde265

buffer overflow

decode_cabac_bit

file exploitation

unix

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.003

Percentile

71.8%

JSON

libde265 v1.0.4 contains a global buffer overflow in the decode_CABAC_bit
function, which can be exploited via a crafted a file.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibde265< 1.0.2-2ubuntu0.18.04.1~esm1UNKNOWN
ubuntu20.04noarchlibde265< 1.0.4-1ubuntu0.1UNKNOWN
ubuntu16.04noarchlibde265< 1.0.2-2ubuntu0.16.04.1~esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libde265	< 1.0.2-2ubuntu0.18.04.1~esm1	UNKNOWN
ubuntu	20.04	noarch	libde265	< 1.0.4-1ubuntu0.1	UNKNOWN
ubuntu	16.04	noarch	libde265	< 1.0.2-2ubuntu0.16.04.1~esm1	UNKNOWN