VDB-207656 · CVE-2020-35537 · GCVE-0-2020-35537

GNU gcc g++ gcc/ipa-cp.c ipcp_store_vr_results 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in GNU gcc. This impacts the function ipcp_store_vr_results of the file gcc/ipa-cp.c of the component g++ Handler. Such manipulation leads to denial of service. This vulnerability is documented as CVE-2020-35537. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNU gcc (affected version unknown). It has been rated as problematic. Affected by this issue is the function ipcp_store_vr_results of the file gcc/ipa-cp.c of the component g++ Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

In gcc, a crafted input source file could cause g++ to crash during compilation when provided certain optimization flags. The problem resides in the ipcp_store_vr_results function in gcc/ipa-cp.c.

The weakness was released 09/01/2022. The advisory is shared for download at gcc.gnu.org. This vulnerability is handled as CVE-2020-35537 since 12/17/2020. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

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: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
09/01/2022 +622 days 🔍
09/01/2022 +0 days 🔍
10/10/2022 +39 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: gcc.gnu.org
Status: Confirmed

CVE: CVE-2020-35537 (🔍)
GCVE (CVE): GCVE-0-2020-35537
GCVE (VulDB): GCVE-100-207656

Entryinfo

Created: 09/01/2022 10:41
Updated: 10/10/2022 14:17
Changes: 09/01/2022 10:41 (39), 10/10/2022 14:17 (11)
Complete: 🔍
Cache ID: 216::103