VDB-245002 · CVE-2023-47163 · GCVE-0-2023-47163

Remarshal up to 0.17.0 AML Alias Node Billion Laughs recursion

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, which was classified as problematic, was found in Remarshal up to 0.17.0. Affected is an unknown function of the component AML Alias Node Handler. Executing a manipulation can lead to recursion. This vulnerability is tracked as CVE-2023-47163. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Remarshal up to 0.17.0 and classified as problematic. This vulnerability affects some unknown functionality of the component AML Alias Node Handler. The manipulation with an unknown input leads to a recursion vulnerability. The CWE definition for the vulnerability is CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. As an impact it is known to affect availability. CVE summarizes:

Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.

The weakness was disclosed 11/13/2023 as fd6ac799a02f533c3fc243b49cdd6d21aa7ee494. The advisory is available at github.com. This vulnerability was named CVE-2023-47163 since 10/31/2023. The technical details are unknown and an exploit is not available.

Upgrading to version 0.17.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch fd6ac799a02f533c3fc243b49cdd6d21aa7ee494 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Name

Remarshal

Version

License

open-source

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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / 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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Remarshal 0.17.1
Patch: fd6ac799a02f533c3fc243b49cdd6d21aa7ee494

Timelineinfo

10/31/2023 🔍
11/13/2023 +13 days 🔍
11/13/2023 +0 days 🔍
12/06/2023 +23 days 🔍

Sourcesinfo

Advisory: fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
Status: Confirmed

CVE: CVE-2023-47163 (🔍)
GCVE (CVE): GCVE-0-2023-47163
GCVE (VulDB): GCVE-100-245002

Entryinfo

Created: 11/13/2023 07:52
Updated: 12/06/2023 13:16
Changes: 11/13/2023 07:52 (43), 12/06/2023 13:16 (11)
Complete: 🔍
Cache ID: 216::103