What is the CVSS score of CVE-2017-1000172?

CVE-2017-1000172 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2017-1000172?

Yes, a public proof-of-concept exploit is available for CVE-2017-1000172. Prioritise patching immediately. EPSS: 1.1%.

Gravity CVE-2017-1000172

CRITICAL

Use After Free (CWE-416)

2017-11-17 cve@mitre.org

Memory Corruption Use After Free RCE Gravity

9.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 17, 2017 - 03:29 cve.org

CRITICAL 9.8

DescriptionCVE.org

Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. An example of a Heap-Use-After-Free after the 'sublexer' pointer has been freed. Line 542 of gravity_lexer.c. 'lexer' is being used to access a variable but 'lexer' has already been freed, creating a Heap Use-After-Free condition.

AnalysisAI

Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. Rated critical severity (CVSS 9.8), 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 Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. Creolabs Gravity Version: 1.0 Use-After-Free Possible code execution. An example of a Heap-Use-After-Free after the 'sublexer' pointer has been freed. Line 542 of gravity_lexer.c. 'lexer' is being used to access a variable but 'lexer' has already been freed, creating a Heap Use-After-Free condition. Affected products include: Creolabs Gravity.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.