BusyBox 1.36.1 awk.c next_token heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in BusyBox 1.36.1. It has been rated as critical. This issue affects the function next_token of the file awk.c. The manipulation leads to heap-based overflow. This vulnerability is traded as CVE-2023-42366. There is no exploit available.

Detailsinfo

A vulnerability was found in BusyBox 1.36.1. It has been rated as critical. This issue affects the function next_token of the file awk.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A heap-buffer-overflow was discovered in BusyBox v.1.36.1 in the next_token function at awk.c:1159.

The weakness was shared 11/28/2023. It is possible to read the advisory at bugs.busybox.net. The identification of this vulnerability is CVE-2023-42366 since 09/08/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211706 (CBL Mariner 2.0 Security Update: busybox (CVE-2023-42366)), 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 (211706) and EUVD (EUVD-2023-46819). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211706
Nessus Name: CBL Mariner 2.0 Security Update: busybox (CVE-2023-42366)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/08/2023 🔍
11/28/2023 +81 days 🔍
11/28/2023 +0 days 🔍
02/02/2026 +797 days 🔍

Sourcesinfo

Advisory: bugs.busybox.net
Status: Confirmed

CVE: CVE-2023-42366 (🔍)
GCVE (CVE): GCVE-0-2023-42366
GCVE (VulDB): GCVE-100-246239
EUVD: 🔍

Entryinfo

Created: 11/28/2023 08:07
Updated: 02/02/2026 09:39
Changes: 11/28/2023 08:07 (37), 12/17/2023 11:18 (9), 11/22/2024 05:32 (17), 12/06/2024 15:39 (2), 02/02/2026 09:39 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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