lrzip 0.651 File /libzpaq/libzpaq.cpp write denial of service

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.
4.5	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in lrzip 0.651. Impacted is the function libzpaq::PostProcessor::write in the library /libzpaq/libzpaq.cpp of the component File Handler. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2023-39741. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in lrzip 0.651. Affected by this issue is the function libzpaq::PostProcessor::write in the library /libzpaq/libzpaq.cpp of the component File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

The weakness was published 08/17/2023 as 246. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2023-39741 since 08/07/2023. There are known technical details, but no exploit is available.

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-2023-43441). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

lrzip

Version

0.651

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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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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: 246
Status: Confirmed

CVE: CVE-2023-39741 (🔍)
GCVE (CVE): GCVE-0-2023-39741
GCVE (VulDB): GCVE-100-237440
EUVD: 🔍

Entryinfo

Created: 08/17/2023 22:36
Updated: 01/26/2026 10:29
Changes: 08/17/2023 22:36 (40), 09/13/2023 09:57 (11), 01/26/2026 10:29 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.