CVE-2020-21600

2021-09-1622:15:07

Alpine Linux Development Team

security.alpinelinux.org

libde265 heap buffer overflow unix crafted file exploit

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

43.6%

JSON

libde265 v1.0.4 contains a heap buffer overflow in the put_weighted_pred_avg_16_fallback function, which can be exploited via a crafted a file.

OSVersionArchitecturePackageVersionFilename
Alpineedge-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.14-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.15-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.16-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.17-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.18-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.19-mainnoarchlibde265< 1.0.11-r0UNKNOWN
Alpine3.20-mainnoarchlibde265< 1.0.11-r0UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Alpine	edge-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.14-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.15-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.16-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.17-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.18-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.19-main	noarch	libde265	< 1.0.11-r0	UNKNOWN
Alpine	3.20-main	noarch	libde265	< 1.0.11-r0	UNKNOWN