VDB-238279 · CVE-2023-40890 · EUVD-2023-45429

ZBar 0.23.90 QR Code lookup_sequence stack-based overflow

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6.9	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in ZBar 0.23.90. This affects the function lookup_sequence of the component QR Code Handler. This manipulation causes stack-based overflow. The identification of this vulnerability is CVE-2023-40890. It is feasible to perform the attack on the physical device. There is no exploit available.

Detailsinfo

A vulnerability has been found in ZBar 0.23.90 and classified as critical. Affected by this vulnerability is the function lookup_sequence of the component QR Code Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A stack-based buffer overflow vulnerability exists in the lookup_sequence function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution. To trigger this vulnerability, an attacker can digitally input the malicious QR code, or prepare it to be physically scanned by the vulnerable scanner.

The weakness was shared 08/29/2023. It is possible to read the advisory at hackmd.io. This vulnerability is known as CVE-2023-40890 since 08/22/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211736 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : ZBar vulnerabilities (USN-7118-1)), 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 (211736) and EUVD (EUVD-2023-45429). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

ZBar

Version

0.23.90

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
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: 211736
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : ZBar vulnerabilities (USN-7118-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/22/2023 🔍
08/29/2023 +7 days 🔍
08/29/2023 +0 days 🔍
07/02/2025 +673 days 🔍

Sourcesinfo

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2023-40890 (🔍)
GCVE (CVE): GCVE-0-2023-40890
GCVE (VulDB): GCVE-100-238279
EUVD: 🔍

Entryinfo

Created: 08/29/2023 20:10
Updated: 07/02/2025 03:21
Changes: 08/29/2023 20:10 (38), 09/22/2023 14:12 (11), 11/23/2024 00:57 (16), 07/02/2025 03:21 (1)
Complete: 🔍
Cache ID: 216::103