Cisco ClamAV up to 0.99.3 clamscan libclamav/pdfng.c PDF File out-of-bounds

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5.3	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Cisco ClamAV up to 0.99.3 and classified as problematic. The impacted element is an unknown function of the file libclamav/pdfng.c of the component clamscan. This manipulation as part of PDF File causes out-of-bounds. This vulnerability is handled as CVE-2018-0202. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Cisco ClamAV up to 0.99.3 (Anti-Malware Software). Affected by this vulnerability is an unknown part of the file libclamav/pdfng.c of the component clamscan. The manipulation as part of a PDF File leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

clamscan in ClamAV before 0.99.4 contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms when handling Portable Document Format (.pdf) files sent to an affected device. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted .pdf file to an affected device. This action could cause an out-of-bounds read when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition. This concerns pdf_parse_array and pdf_parse_string in libclamav/pdfng.c. Cisco Bug IDs: CSCvh91380, CSCvh91400.

The bug was discovered 03/16/2018. The weakness was released 03/27/2018 with Qihoo 360 Vulcan Team (Website). It is possible to read the advisory at lists.debian.org. This vulnerability is known as CVE-2018-0202 since 11/27/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 108415 (Debian DLA-1307-1 : clamav security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197076 (Ubuntu Security Notification for Clamav Vulnerabilities (USN-3592-1)).

Upgrading to version 0.99.4 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (108415) and SecurityFocus (BID 103603†). Entries connected to this vulnerability are available at VDB-110554, VDB-113070, VDB-113073 and VDB-114085. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Anti-Malware Software

Vendor

Cisco

Name

ClamAV

Version

License

free

Website

Vendor: https://www.cisco.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 108415
Nessus Name: Debian DLA-1307-1 : clamav security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802808
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1307-1] clamav security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ClamAV 0.99.4

Timelineinfo

11/27/2017 🔍
03/16/2018 +109 days 🔍
03/16/2018 +0 days 🔍
03/19/2018 +3 days 🔍
03/27/2018 +8 days 🔍
03/27/2018 +0 days 🔍
03/28/2018 +1 days 🔍
04/10/2018 +13 days 🔍
02/24/2023 +1781 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: USN-3592-1
Researcher: Yuki Chen
Organization: Qihoo 360 Vulcan Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0202 (🔍)
GCVE (CVE): GCVE-0-2018-0202
GCVE (VulDB): GCVE-100-115111
SecurityFocus: 103603 - Microsoft Internet Explorer Scripting Engine CVE-2018-1000 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 03/28/2018 09:08
Updated: 02/24/2023 11:58
Changes: 03/28/2018 09:08 (77), 06/08/2020 18:02 (5), 02/06/2021 09:55 (3), 02/24/2023 11:58 (3)
Complete: 🔍
Cache ID: 216::103