VDB-204940 · CVE-2022-34520 · Issue 20354

Radare2 5.7.2 Binary File bin/bfile.c r_bin_file_xtr_load_buffer null pointer dereference

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.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Radare2 5.7.2. Affected is the function r_bin_file_xtr_load_buffer of the file bin/bfile.c of the component Binary File Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is registered as CVE-2022-34520. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in Radare2 5.7.2 (Programming Tool Software). This vulnerability affects the function r_bin_file_xtr_load_buffer of the file bin/bfile.c of the component Binary File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

Radare2 v5.7.2 was discovered to contain a NULL pointer dereference via the function r_bin_file_xtr_load_buffer at bin/bfile.c. This vulnerability allows attackers to cause a Denial of Service (DOS) via a crafted binary file.

The weakness was published 07/22/2022 as 20354. The advisory is shared for download at github.com. This vulnerability was named CVE-2022-34520 since 06/26/2022. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Programming Tool Software

Name

Radare2

Version

5.7.2

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/26/2022 🔍
07/22/2022 +26 days 🔍
07/22/2022 +0 days 🔍
07/22/2022 +0 days 🔍

Sourcesinfo

Advisory: 20354
Status: Confirmed

CVE: CVE-2022-34520 (🔍)
GCVE (CVE): GCVE-0-2022-34520
GCVE (VulDB): GCVE-100-204940

Entryinfo

Created: 07/22/2022 20:14
Changes: 07/22/2022 20:14 (41)
Complete: 🔍
Cache ID: 216::103