What is the CVSS score of CVE-2023-29420?

CVE-2023-29420 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.9%.

Is there a public PoC exploit available for CVE-2023-29420?

Yes, a public proof-of-concept exploit is available for CVE-2023-29420. Prioritise patching immediately. EPSS: 0.9%.

Is there a patch available for CVE-2023-29420?

Yes, a patch is available for CVE-2023-29420. Update the affected software to the latest version immediately.

Bzip3 CVE-2023-29420

MEDIUM

Buffer Overflow (CWE-119)

2023-04-06 cve@mitre.org

Buffer Overflow Bzip3

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Apr 06, 2023 - 05:15 nvd

MEDIUM 6.5

DescriptionNVD

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block.

AnalysisAI

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block. Affected products include: Bzip3 Project Bzip3. Version information: before 1.2.3..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.