CVE-2020-27853

Severity CVSS v4.0:

Pending analysis

Type:

CWE-134 Format String Vulnerability

Publication date:

27/10/2020

Last modified:

07/12/2020

Description

Wire before 2020-10-16 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a format string. This affects Wire AVS (Audio, Video, and Signaling) 5.3 through 6.x before 6.4, the Wire Secure Messenger application before 3.49.918 for Android, and the Wire Secure Messenger application before 3.61 for iOS. This occurs via the value parameter to sdp_media_set_lattr in peerflow/sdp.c.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

7.50

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:wire:wire::::::linux::*		3.21.2936 (excluding)
cpe:2.3:a:wire:wire::::::windows::*		3.21.3932 (excluding)
cpe:2.3:a:wire:wire::::::macos::*		3.21.3959 (excluding)
cpe:2.3:a:wire:wire_-_audio\,_video\,_and_signaling::::::::	5.3 (including)	6.4 (excluding)
cpe:2.3:a:wire:wire_secure_messenger::::::android::*		3.49.918 (excluding)
cpe:2.3:a:wire:wire_secure_messenger::::::iphone_os::*		3.61 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2020-27853

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools