Libheif CVE-2023-29659

MEDIUM

Divide By Zero (CWE-369)

2023-05-05 cve@mitre.org

Denial Of Service Fedora Libheif Struktur Fedoraproject

6.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-369 OWASP Top 10:2025 A10:2025 - Mishandling of Exceptional Conditions ASVS 5.0 V16 - Security Logging and Error Handling Division safety checks
Impact	CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.9% exploitation probability (EPSS)

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AnalysisAI

A Segmentation fault caused by a floating point exception exists in libheif 1.15.1 using crafted heif images via the heif::Fraction::round() function in box.cc, which causes a denial of service. Rated medium severity (CVSS 6.5), 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affected Packages

go github.com/strukturag/libheif fix: 1.15.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in go

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Technical ContextAI · show details

This vulnerability is classified under CWE-369. A Segmentation fault caused by a floating point exception exists in libheif 1.15.1 using crafted heif images via the heif::Fraction::round() function in box.cc, which causes a denial of service. Affected products include: Struktur Libheif, Fedoraproject Fedora.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

AV:N/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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionNVD

A Segmentation fault caused by a floating point exception exists in libheif 1.15.1 using crafted heif images via the heif::Fraction::round() function in box.cc, which causes a denial of service.

Threat Intelligence Overview

EPSS Score

0.9%

Top 44% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

CVE.org

EPSS

GitHub

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 MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.9%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

53

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +32

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

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

Affected Products (CPE)NVD

cpe:2.3:a:struktur:libheif:1.15.1:*:*:*:*:*:*:*

cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

More in Libheif

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CVE-2023-49464 HIGH This Week POC

libheif v1.17.5 was discovered to contain a segmentation violation via the function UncompressedImageCodec::get_luma_bit

CVE-2023-49463 HIGH This Week POC

libheif v1.17.5 was discovered to contain a segmentation violation via the function find_exif_tag at /libheif/exif.cc. R

CVE-2023-49462 HIGH This Week POC

libheif v1.17.5 was discovered to contain a segmentation violation via the component /libheif/exif.cc. Rated high severi

CVE-2023-49460 HIGH This Week POC

libheif v1.17.5 was discovered to contain a segmentation violation via the function UncompressedImageCodec::decode_uncom

CVE-2019-11471 HIGH This Week POC

libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context

CVE-2024-41311 HIGH This Week POC

In Libheif 1.17.6, insufficient checks in ImageOverlay::parse() decoding a heif file containing an overlay image with fo

CVE-2024-25269 HIGH This Week POC

libheif <= 1.17.6 contains a memory leak in the function JpegEncoder::Encode. Rated high severity (CVSS 7.5), this vulne

CVE-2025-68431 HIGH This Week POC

Out-of-bounds read in libheif's HEIF/HEIC overlay processing can disclose limited memory contents and crash affected app

CVE-2025-29482 MEDIUM This Month POC

Buffer Overflow vulnerability in libheif 1.19.7 allows a local attacker to execute arbitrary code via the SAO (Sample Ad

CVE-2026-84383 CRITICAL Act Now

Heap-based buffer overflow in libheif before 1.23.2 allows remote attackers to corrupt memory and potentially achieve co

CVE-2026-32740 HIGH This Week

Heap buffer overflow write in libheif (versions ≤ 1.21.2) lets a crafted HEIF/AVIF file write 64 bytes of attacker-contr

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Arbitrary code execution in libheif 1.19.0 through 1.21.2 via a crafted HEIF file with uncompressed, tiled, component-in

Same weakness CWE-369 – Divide By Zero

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CVE-2017-11720 CRITICAL POC

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CVE-2016-3623 HIGH POC

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CVE-2023-1127 HIGH POC

CVE-2023-0512 HIGH POC

CVE-2021-29600 HIGH POC

Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC

CVE-2011-2462 CRITICAL POC

CVE-2011-0611 HIGH POC

CVE-2012-1889 HIGH POC

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CVE-2014-1761 HIGH POC

CVE-2015-5122 CRITICAL POC

CVE-2011-0609 HIGH POC

References

Advisories & patches

REF https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CKAE6NQBA3Q7GS6VTNDZRZZZVPPEFUEZ/ REF https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LGKHDCS4HRZE3UGXYYDYPTIPNIBRLQ5L/

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