VDB-217037 · CVE-2022-4843 · GCVE-0-2022-4843

radare2 up to 5.8.1 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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in radare2 up to 5.8.1. The impacted element is an unknown function. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2022-4843. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in radare2 up to 5.8.1 (Programming Tool Software). This issue affects some unknown functionality. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

NULL Pointer Dereference in GitHub repository radareorg/radare2 prior to 5.8.2.

The weakness was disclosed 12/30/2022. The advisory is shared at huntr.dev. The identification of this vulnerability is CVE-2022-4843 since 12/29/2022. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 5.8.2 eliminates this vulnerability. Applying the patch 842f809d4ec6a12af2906f948657281c9ebc8a24 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.

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Productinfo

Type

Programming Tool Software

Name

radare2

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 4.4
CNA Vector (huntr.dev): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
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: radare2 5.8.2
Patch: 842f809d4ec6a12af2906f948657281c9ebc8a24

Timelineinfo

12/29/2022 🔍
12/30/2022 +1 days 🔍
12/30/2022 +0 days 🔍
01/26/2023 +27 days 🔍

Sourcesinfo

Advisory: 842f809d4ec6a12af2906f948657281c9ebc8a24
Status: Confirmed

CVE: CVE-2022-4843 (🔍)
GCVE (CVE): GCVE-0-2022-4843
GCVE (VulDB): GCVE-100-217037

Entryinfo

Created: 12/30/2022 11:56
Updated: 01/26/2023 07:40
Changes: 12/30/2022 11:56 (51), 01/26/2023 07:33 (1), 01/26/2023 07:40 (11)
Complete: 🔍
Cache ID: 216::103