VDB-195851 · CVE-2022-27943 · EUVD-2022-32431

GNU gcc 11.2 rust-demangle.c demangle_const resource consumption

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in GNU gcc 11.2. It has been classified as problematic. The impacted element is the function demangle_const of the file libiberty/rust-demangle.c. The manipulation leads to resource consumption. This vulnerability is documented as CVE-2022-27943. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNU gcc 11.2. This issue affects the function demangle_const of the file libiberty/rust-demangle.c. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was released 03/26/2022. It is possible to read the advisory at gcc.gnu.org. The identification of this vulnerability is CVE-2022-27943 since 03/26/2022. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at gcc.gnu.org.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-32431). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

11.2

License

open-source

Website

Vendor: https://www.gnu.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

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

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: gcc.gnu.org

Timelineinfo

03/26/2022 🔍
03/26/2022 +0 days 🔍
03/26/2022 +0 days 🔍
05/15/2026 +1511 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: gcc.gnu.org
Status: Confirmed

CVE: CVE-2022-27943 (🔍)
GCVE (CVE): GCVE-0-2022-27943
GCVE (VulDB): GCVE-100-195851
EUVD: 🔍

Entryinfo

Created: 03/26/2022 15:22
Updated: 05/15/2026 15:46
Changes: 03/26/2022 15:22 (40), 03/31/2022 06:52 (1), 05/15/2026 15:46 (15)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.