CVE-2023-29421 - Vulnerability Details - OpenCVE

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is an out-of-bounds write in bz3_decode_block.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00134.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Bzip3 Project Subscribe	Bzip3 Subscribe

Configuration 1 [-]

cpe:2.3:a:bzip3_project:bzip3:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-32990	An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is an out-of-bounds write in bz3_decode_block.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/kspalaiologos/bzip3/compare/1.2.2...1.2.3
https://github.com/kspalaiologos/bzip3/issues/94
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4JLSE25SV7K2NB6FTFT4UHJOJUHBHYHY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NA7S7HDUAINOTCSWQZ5LIW756DYY22V2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMLFV2FJK3CM7NJLVPZI5RUAFQZICPWW/

History

Sun, 13 Jul 2025 13:45:00 +0000

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.0012}`	epss `{'score': 0.00157}`

Wed, 12 Feb 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2023-04-06T00:00:00.000Z

Updated: 2025-02-12T16:25:40.386Z

Reserved: 2023-04-06T00:00:00.000Z

Link: CVE-2023-29421

Vulnrichment

Updated: 2024-08-02T14:07:46.216Z

NVD

Status : Modified

Published: 2023-04-06T05:15:07.653

Modified: 2025-02-12T17:15:18.467

Link: CVE-2023-29421

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

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