VDB-236983 · CVE-2020-36023 · Issue 1013

Freedesktop Poppler 20.12.1 PDF File FoFiType1C::cvtGlyph denial of service

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Freedesktop Poppler 20.12.1. It has been classified as problematic. Affected is the function FoFiType1C::cvtGlyph of the component PDF File Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2020-36023. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Freedesktop Poppler 20.12.1 (Document Reader Software) and classified as problematic. Affected by this vulnerability is the function FoFiType1C::cvtGlyph of the component PDF File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial of service (DoS) via crafted .pdf file to FoFiType1C::cvtGlyph function.

The weakness was presented 08/11/2023 as 1013. It is possible to read the advisory at gitlab.freedesktop.org. This vulnerability is known as CVE-2020-36023 since 01/04/2021. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 236774 (Debian dla-4141 : gir1.2-poppler-0.18 - security update), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (236774). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Document Reader Software

Vendor

Freedesktop

Name

Poppler

Version

20.12.1

License

open-source

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 6.5
NVD Vector: 🔍

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: Denial of service
CWE: CWE-404
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

Nessus ID: 236774
Nessus Name: Debian dla-4141 : gir1.2-poppler-0.18 - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2021 🔍
08/11/2023 +948 days 🔍
08/11/2023 +0 days 🔍
05/17/2025 +645 days 🔍

Sourcesinfo

Advisory: 1013
Status: Confirmed

CVE: CVE-2020-36023 (🔍)
GCVE (CVE): GCVE-0-2020-36023
GCVE (VulDB): GCVE-100-236983

Entryinfo

Created: 08/11/2023 17:46
Updated: 05/17/2025 06:22
Changes: 08/11/2023 17:46 (41), 09/08/2023 09:58 (11), 05/17/2025 06:22 (17)
Complete: 🔍
Cache ID: 216::103