VDB-172650 · CVE-2021-1405 · GCVE-0-2021-1405

ClamAV Antivirus 0.103.0/0.103.1 PDF Parser buffer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	1.20

Summaryinfo

A vulnerability, which was classified as critical, was found in ClamAV Antivirus 0.103.0/0.103.1. Impacted is an unknown function of the component PDF Parser. The manipulation results in buffer overflow. This vulnerability is known as CVE-2021-1405. It is possible to launch the attack remotely. No exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in ClamAV Antivirus 0.103.0/0.103.1 (Anti-Malware Software). Affected is some unknown functionality of the component PDF Parser. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability.

The weakness was published 04/08/2021. The advisory is available at blog.clamav.net. This vulnerability is traded as CVE-2021-1405. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at blog.clamav.net.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Anti-Malware Software

Vendor

ClamAV

Name

Antivirus

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: blog.clamav.net

Timelineinfo

11/13/2020 🔍
04/08/2021 +145 days 🔍
04/08/2021 +0 days 🔍
04/15/2021 +7 days 🔍

Sourcesinfo

Advisory: blog.clamav.net
Status: Confirmed

CVE: CVE-2021-1405 (🔍)
GCVE (CVE): GCVE-0-2021-1405
GCVE (VulDB): GCVE-100-172650

Entryinfo

Created: 04/08/2021 15:37
Updated: 04/15/2021 07:33
Changes: 04/08/2021 15:37 (39), 04/15/2021 07:29 (5), 04/15/2021 07:33 (1)
Complete: 🔍
Cache ID: 216::103