ClamAV Antivirus up to 0.101.1 Scanning Engine PDF File out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$5k-$25k0.00

A vulnerability was found in ClamAV Antivirus up to 0.101.1 (Anti-Malware Software) and classified as problematic. This issue affects an unknown function of the component Scanning Engine. The manipulation as part of a PDF File leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause a heap buffer out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

The bug was discovered 04/08/2019. The weakness was presented 04/08/2019 (Website). The advisory is shared at security.gentoo.org. The identification of this vulnerability is CVE-2019-1787 since 12/06/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/27/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 197422 (Ubuntu Security Notification for ClamAV Vulnerabilities(USN-3940-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 133132, 133134, 133131 and 133135 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Cisco Systems, Inc.): 🔍

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
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
04/08/2019 +123 days 🔍
04/08/2019 +0 days 🔍
04/09/2019 +1 days 🔍
08/27/2023 +1601 days 🔍

Sourcesinfo

Advisory: DLA 1759-1
Status: Confirmed

CVE: CVE-2019-1787 (🔍)
See also: 🔍

Entryinfo

Created: 04/09/2019 08:30
Updated: 08/27/2023 13:54
Changes: 04/09/2019 08:30 (58), 05/27/2020 14:37 (2), 08/27/2023 13:48 (3), 08/27/2023 13:54 (12)
Complete: 🔍

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