DCMTK up to 3.6.6 Parser memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in DCMTK up to 3.6.6. It has been rated as problematic. This vulnerability affects unknown code of the component Parser. This manipulation causes memory leak. The identification of this vulnerability is CVE-2021-41687. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability has been found in DCMTK up to 3.6.6 and classified as problematic. Affected by this vulnerability is an unknown function of the component Parser. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

DCMTK through 3.6.6 does not handle memory free properly. The program malloc a heap memory for parsing data, but does not free it when error in parsing. Sending specific requests to the dcmqrdb program incur the memory leak. An attacker can use it to launch a DoS attack.

The weakness was shared 06/29/2022 as a9697dfeb672b0b9412c00c7d36d801e27ec85cb. The advisory is shared at github.com. This vulnerability is known as CVE-2021-41687 since 09/27/2021. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211270 (Fedora 37 : OpenImageIO / ctk / dcmtk (2022-73bf8ee661)), which helps to determine the existence of the flaw in a target environment.

Applying the patch a9697dfeb672b0b9412c00c7d36d801e27ec85cb is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (211270). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211270
Nessus Name: Fedora 37 : OpenImageIO / ctk / dcmtk (2022-73bf8ee661)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: a9697dfeb672b0b9412c00c7d36d801e27ec85cb

Timelineinfo

09/27/2021 🔍
06/29/2022 +275 days 🔍
06/29/2022 +0 days 🔍
11/16/2024 +871 days 🔍

Sourcesinfo

Product: github.com

Advisory: a9697dfeb672b0b9412c00c7d36d801e27ec85cb
Status: Confirmed

CVE: CVE-2021-41687 (🔍)
GCVE (CVE): GCVE-0-2021-41687
GCVE (VulDB): GCVE-100-202909

Entryinfo

Created: 06/29/2022 07:53
Updated: 11/16/2024 13:05
Changes: 06/29/2022 07:53 (41), 07/16/2022 11:20 (18), 06/28/2024 23:51 (16), 11/16/2024 13:05 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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