What is the CVSS score of CVE-2023-27705?

CVE-2023-27705 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.8%.

Is there a public PoC exploit available for CVE-2023-27705?

Yes, a public proof-of-concept exploit is available for CVE-2023-27705. Prioritise patching immediately. EPSS: 0.8%.

Ubuntu CVE-2023-27705

HIGH

Classic Buffer Overflow (CWE-120)

2023-04-17 cve@mitre.org

Ubuntu Buffer Overflow Apng Optimizer

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Apr 17, 2023 - 15:15 nvd

HIGH 7.5

DescriptionNVD

APNG_Optimizer v1.4 was discovered to contain a buffer overflow via the component /apngopt/ubuntu.png.

AnalysisAI

APNG_Optimizer v1.4 was discovered to contain a buffer overflow via the component /apngopt/ubuntu.png. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. APNG_Optimizer v1.4 was discovered to contain a buffer overflow via the component /apngopt/ubuntu.png. Affected products include: Apng Optimizer Project Apng Optimizer.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.