What is the CVSS score of CVE-2018-14047?

CVE-2018-14047 has a CVSS 3.0 base score of 5.5 (Medium). CVSS vector: CVSS:3.0/AV:L/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-2018-14047?

Yes, a public proof-of-concept exploit is available for CVE-2018-14047. Prioritise patching immediately. EPSS: 0.9%.

Pngwriter CVE-2018-14047

MEDIUM

Buffer Overflow (CWE-119)

2018-07-13 cve@mitre.org

Buffer Overflow Pngwriter

5.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

AV:L/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:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jul 13, 2018 - 16:29 nvd

MEDIUM 5.5

DescriptionNVD

An issue has been found in PNGwriter 0.7.0. It is a SEGV in pngwriter::readfromfile in pngwriter.cc. NOTE: there is a "Warning: PNGwriter was never designed for reading untrusted files with it. Do NOT use this in sensitive environments, especially DO NOT read PNGs from unknown sources with it!" statement in the master/README.md file

AnalysisAI

An issue has been found in PNGwriter 0.7.0. Rated medium severity (CVSS 5.5), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch 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 has been found in PNGwriter 0.7.0. It is a SEGV in pngwriter::readfromfile in pngwriter.cc. NOTE: there is a "Warning: PNGwriter was never designed for reading untrusted files with it. Do NOT use this in sensitive environments, especially DO NOT read PNGs from unknown sources with it!" statement in the master/README.md file Affected products include: Pngwriter Project Pngwriter.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.