BusyBox 1.35-x awk Applet copyvar use after free

HistoryDiffrelatejsonxmlCTI

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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in BusyBox 1.35-x and classified as problematic. Impacted is the function copyvar of the component awk Applet. The manipulation leads to use after free. This vulnerability is referenced as CVE-2022-30065. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in BusyBox 1.35-x. This issue affects the function copyvar of the component awk Applet. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was published 05/18/2022 as 14781. It is possible to read the advisory at bugs.busybox.net. The identification of this vulnerability is CVE-2022-30065 since 05/02/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 224718 (Linux Distros Unpatched Vulnerability : CVE-2022-30065), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the databases at Tenable (224718) and EUVD (EUVD-2022-35279). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

BusyBox

Version

1.35-x

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

ADP CISA Base Score: 7.8
ADP CISA Vector: 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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

Nessus ID: 224718
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-30065

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/02/2022 🔍
05/18/2022 +16 days 🔍
05/18/2022 +0 days 🔍
07/07/2026 +1511 days 🔍

Sourcesinfo

Advisory: 14781
Status: Confirmed

CVE: CVE-2022-30065 (🔍)
GCVE (CVE): GCVE-0-2022-30065
GCVE (VulDB): GCVE-100-200315
EUVD: 🔍

Entryinfo

Created: 05/18/2022 18:22
Updated: 07/07/2026 21:32
Changes: 05/18/2022 18:22 (38), 05/26/2022 08:58 (1), 05/26/2022 09:03 (1), 03/05/2025 12:27 (16), 05/29/2026 03:48 (1), 07/07/2026 21:32 (28)
Complete: 🔍
Cache ID: 216::103

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