TI-2023-13796 Aliases CVE-2023-29416 GHSA-g592-965h-fh64

An issue was discovered in libbzip3.a in bzip3 before 1.3.0.

LOW 31CWE-787Published 2023-04-06 · Updated 2025-02-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

An issue was discovered in libbzip3.a in bzip3 before 1.3.0. A bz3_decode_block out-of-bounds write can occur with a crafted archive because bzip3 does not follow the required procedure for interacting with libsais.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00902 59th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:bzip3_project:bzip3::::::::	before 1.3.0	Vulnerable	Bzip3 Project

cpe:2.3:a:bzip3_project:bzip3:*:*:*:*:*:*:*:* Versions before 1.3.0 Vulnerable ·Bzip3 Project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2023-29416
2026-10-03 Alias added: GHSA-g592-965h-fh64

References

Exploit 1

https://github.com/kspalaiologos/bzip3/issues/92

Patch 1

https://github.com/kspalaiologos/bzip3/commit/bfa5bf82b53715dfedf048e5859a46cf248668ff

Advisory 3

Other 1

https://github.com/kspalaiologos/bzip3/compare/1.2.3...1.3.0

TI-2023-13801 An issue was discovered in libbzip3.a in bzip3 before 1.2.3. CVSS 3.1HIGH 8.8
TI-2023-13800 An issue was discovered in libbzip3.a in bzip3 before 1.2.3. CVSS 3.1MEDIUM 6.5
TI-2023-13799 An issue was discovered in libbzip3.a in bzip3 before 1.2.3. CVSS 3.1MEDIUM 6.5
TI-2023-13798 An issue was discovered in libbzip3.a in bzip3 before 1.2.3. CVSS 3.1MEDIUM 6.5
TI-2023-13795 An issue was discovered in libbzip3.a in bzip3 before 1.3.0. CVSS 3.1MEDIUM 6.5
TI-2023-13797 An issue was discovered in libbzip3.a in bzip3 1.2.2. CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences