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Libsndfile CVE-2018-19662

HIGH
Out-of-bounds Read (CWE-125)
2018-11-29 cve@mitre.org
8.1
CVSS 3.0 · NVD
View

Vulnerability Assessment

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

1 technique across 1 tactic: Collection

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

Impact

CVSS score of 8.1 (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 read data from memory outside the intended buffer boundaries 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 2.3% exploitation probability (EPSS)

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AnalysisAI

An issue was discovered in libsndfile 1.0.28. Rated high severity (CVSS 8.1), 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 array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

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 Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. An issue was discovered in libsndfile 1.0.28. There is a buffer over-read in the function i2alaw_array in alaw.c that will lead to a denial of service. Affected products include: Libsndfile Project Libsndfile, Debian Debian Linux.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/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
None
Availability
High

DescriptionNVD

An issue was discovered in libsndfile 1.0.28. There is a buffer over-read in the function i2alaw_array in alaw.c that will lead to a denial of service.

Threat Intelligence Overview

EPSS Score
2.3%
Top 19% 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 2.3%
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

62
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +40
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.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:libsndfile_project:libsndfile:1.0.28:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2015-7805 CRITICAL POC
9.3 Nov 17

Heap-based buffer overflow in libsndfile 1.0.25 allows remote attackers to have unspecified impact via the headindex val

CVE-2021-3246 HIGH POC
8.8 Jul 20

A heap buffer overflow vulnerability in msadpcm_decode_block of libsndfile 1.0.30 allows attackers to execute arbitrary

CVE-2025-52194 HIGH POC
7.5 Aug 21

A buffer overflow vulnerability exists in libsndfile version 1.2.2 and potentially earlier versions when processing malf

CVE-2026-37555 HIGH POC
7.5 Apr 29

Denial of service and potential heap buffer overflow in libsndfile 1.2.2's IMA ADPCM codec allows remote attackers to cr

CVE-2024-50613 MEDIUM POC
6.5 Oct 27

libsndfile through 1.2.2 has a reachable assertion, that may lead to application exit, in mpeg_l3_encode.c mpeg_l3_encod

CVE-2018-19758 MEDIUM POC
6.5 Nov 30

There is a heap-based buffer over-read at wav.c in wav_write_header in libsndfile 1.0.28 that will cause a denial of ser

CVE-2018-19661 MEDIUM POC
6.5 Nov 29

An issue was discovered in libsndfile 1.0.28. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitab

CVE-2018-19432 MEDIUM POC
6.5 Nov 22

An issue was discovered in libsndfile 1.0.28. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitab

CVE-2017-12562 CRITICAL
9.8 Aug 05

Heap-based Buffer Overflow in the psf_binheader_writef function in common.c in libsndfile through 1.0.28 allows remote a

CVE-2017-7742 MEDIUM POC
5.5 Apr 12

In libsndfile before 1.0.28, an error in the "flac_buffer_copy()" function (flac.c) can be exploited to cause a segmenta

CVE-2017-7741 MEDIUM POC
5.5 Apr 12

In libsndfile before 1.0.28, an error in the "flac_buffer_copy()" function (flac.c) can be exploited to cause a segmenta

CVE-2019-3832 MEDIUM POC
5.5 Mar 21

It was discovered the fix for CVE-2018-19758 (libsndfile) was not complete and still allows a read beyond the limits of

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