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Libming CVE-2023-31976

HIGH
Out-of-bounds Write (CWE-787)
2023-05-09 cve@mitre.org
8.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could write data beyond allocated buffer boundaries leading to code execution or crashes by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.7% exploitation probability (EPSS)

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AnalysisAI

libming v0.4.8 was discovered to contain a stack buffer overflow via the function makeswf_preprocess at /util/makeswf_utils.c. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. libming v0.4.8 was discovered to contain a stack buffer overflow via the function makeswf_preprocess at /util/makeswf_utils.c. Affected products include: Libming.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

libming v0.4.8 was discovered to contain a stack buffer overflow via the function makeswf_preprocess at /util/makeswf_utils.c.

Threat Intelligence Overview

EPSS Score
0.7%
Top 51% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 0.7%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

65
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +44
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.

Affected Products (CPE)NVD

cpe:2.3:a:libming:libming:0.4.8:*:*:*:*:*:*:*
CVE-2023-50628 CRITICAL POC
9.8 Dec 20

Buffer Overflow vulnerability in libming version 0.4.8, allows attackers to execute arbitrary code and obtain sensitive

CVE-2020-11895 CRITICAL POC
9.1 Apr 19

Ming (aka libming) 0.4.8 has a heap-based buffer over-read (2 bytes) in the function decompileIF() in decompile.c. Rated

CVE-2020-11894 CRITICAL POC
9.1 Apr 19

Ming (aka libming) 0.4.8 has a heap-based buffer over-read (8 bytes) in the function decompileIF() in decompile.c. Rated

CVE-2019-16705 CRITICAL POC
9.1 Sep 23

Ming (aka libming) 0.4.8 has an out of bounds read vulnerability in the function OpCode() in the decompile.c file in lib

CVE-2023-36239 HIGH POC
8.8 Jun 22

libming listswf 0.4.7 was discovered to contain a buffer overflow in the parseSWF_DEFINEFONTINFO() function at parser.c.

CVE-2020-6628 HIGH POC
8.8 Jan 09

Ming (aka libming) 0.4.8 has a heap-based buffer over-read in the function decompile_SWITCH() in decompile.c. Rated high

CVE-2019-9114 HIGH POC
8.8 Feb 25

Ming (aka libming) 0.4.8 has an out of bounds write vulnerability in the function strcpyext() in the decompile.c file in

CVE-2019-9113 HIGH POC
8.8 Feb 25

Ming (aka libming) 0.4.8 has a NULL pointer dereference in the function getString() in the decompile.c file in libutil.a

CVE-2019-7582 HIGH POC
8.8 Feb 07

The readBytes function in util/read.c in libming through 0.4.8 allows remote attackers to have unspecified impact via a

CVE-2019-7581 HIGH POC
8.8 Feb 07

The parseSWF_ACTIONRECORD function in util/parser.c in libming through 0.4.8 allows remote attackers to have unspecified

CVE-2018-20429 HIGH POC
8.8 Dec 24

libming 0.4.8 has a NULL pointer dereference in the getName function of the decompile.c file, a different vulnerability

CVE-2018-20428 HIGH POC
8.8 Dec 24

libming 0.4.8 has a NULL pointer dereference in the strlenext function of the decompile.c file, a different vulnerabilit

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