lrzip-next 3.c/23.01 LZMA src/libbz3.c memory corruption

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in lrzip-next 3.c/23.01. The impacted element is an unknown function in the library src/libbz3.c of the component LZMA. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2023-39743. No exploit exists.

Detailsinfo

A vulnerability has been found in lrzip-next 3.c/23.01 and classified as critical. This vulnerability affects some unknown functionality in the library src/libbz3.c of the component LZMA. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

lrzip-next LZMA v23.01 was discovered to contain an access violation via the component /bz3_decode_block src/libbz3.c.

The weakness was disclosed 08/17/2023 as 132. The advisory is available at github.com. This vulnerability was named CVE-2023-39743 since 08/07/2023. Technical details are known, but there is no available exploit.

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 vulnerability database at EUVD (EUVD-2023-43443). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

lrzip-next

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 5.3
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/07/2023 🔍
08/17/2023 +10 days 🔍
08/17/2023 +0 days 🔍
01/26/2026 +893 days 🔍

Sourcesinfo

Advisory: 132
Status: Confirmed

CVE: CVE-2023-39743 (🔍)
GCVE (CVE): GCVE-0-2023-39743
GCVE (VulDB): GCVE-100-237442
EUVD: 🔍

Entryinfo

Created: 08/17/2023 22:37
Updated: 01/26/2026 10:53
Changes: 08/17/2023 22:37 (39), 09/13/2023 10:01 (11), 10/09/2024 14:37 (16), 01/26/2026 10:53 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.