zchunk up to 1.3.1 lib/comp/comp.c integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in zchunk up to 1.3.1. It has been rated as problematic. Impacted is an unknown function in the library lib/comp/comp.c. Performing a manipulation results in integer overflow. This vulnerability is reported as CVE-2023-46228. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in zchunk up to 1.3.1. It has been classified as problematic. This affects an unknown function in the library lib/comp/comp.c. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. The impact remains unknown. The summary by CVE is:

zchunk before 1.3.2 has multiple integer overflows via malformed zchunk files to lib/comp/comp.c, lib/comp/zstd/zstd.c, lib/dl/multipart.c, or lib/header.c.

The weakness was disclosed 10/19/2023 as 08aec2b4dfd7f709b6e3d511411ffcc83ed4efbe. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-46228. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.3.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 08aec2b4dfd7f709b6e3d511411ffcc83ed4efbe is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-50468). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: zchunk 1.3.2
Patch: 08aec2b4dfd7f709b6e3d511411ffcc83ed4efbe

Timelineinfo

10/19/2023 🔍
10/19/2023 +0 days 🔍
10/19/2023 +0 days 🔍
02/14/2026 +849 days 🔍

Sourcesinfo

Product: github.com

Advisory: 08aec2b4dfd7f709b6e3d511411ffcc83ed4efbe
Status: Confirmed

CVE: CVE-2023-46228 (🔍)
GCVE (CVE): GCVE-0-2023-46228
GCVE (VulDB): GCVE-100-242907
EUVD: 🔍

Entryinfo

Created: 10/19/2023 07:49
Updated: 02/14/2026 18:30
Changes: 10/19/2023 07:49 (41), 11/11/2023 09:23 (1), 11/11/2023 09:26 (11), 02/14/2026 18:30 (16)
Complete: 🔍
Cache ID: 216::103

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

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