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Libde265 CVE-2024-38949

MEDIUM
Heap-based Buffer Overflow (CWE-122)
2024-06-26 cve@mitre.org
Buffer Overflow Heap Overflow Libde265 Struktur
6.5
CVSS 3.1 · Vendor: mitre
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Vulnerability Assessment

Weakness
CWE
CWE-122
ASVS 5.0
V15 - Secure Coding and Architecture Heap buffer bounds checking
MITRE ATT&CK

1 technique across 1 tactic: Execution

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

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Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
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 0.4% exploitation probability (EPSS)

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AnalysisAI

Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to display444as420 function at sdl.cc. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. 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.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-122. Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to display444as420 function at sdl.cc Affected products include: Struktur Libde265.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (mitre) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

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

DescriptionCVE.org

Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to display444as420 function at sdl.cc

Threat Intelligence Overview

EPSS Score
0.4%
Top 65% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS GitHub VulDB

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 No
EPSS 0.4%
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
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

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.

Heap Overflow HIGH

A heap overflow occurs when a program writes data beyond the bounds of a buffer allocated in the heap memory region.

Affected Products (CPE)CVE.org

cpe:2.3:a:struktur:libde265:1.0.15:*:*:*:*:*:*:*

More in Libde265

View all
CVE-2022-1253 CRITICAL POC
9.8 Apr 06

Heap-based Buffer Overflow in GitHub repository strukturag/libde265 prior to and including 1.0.8. Rated critical severit
CVE-2023-49468 HIGH POC
8.8 Dec 07

Libde265 v1.0.14 was discovered to contain a global buffer overflow vulnerability in the read_coding_unit function at sl
CVE-2023-49467 HIGH POC
8.8 Dec 07

Libde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_combined_bipredictive_merg
CVE-2023-49465 HIGH POC
8.8 Dec 07

Libde265 v1.0.14 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_predic
CVE-2023-27103 HIGH POC
8.8 Mar 15

Libde265 v1.0.11 was discovered to contain a heap buffer overflow via the function derive_collocated_motion_vectors at m
CVE-2023-43887 HIGH POC
8.1 Nov 22

Libde265 v1.0.12 was discovered to contain multiple buffer overflows via the num_tile_columns and num_tile_row parameter
CVE-2023-25221 HIGH POC
7.8 Mar 01

Libde265 v1.0.10 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_predic
CVE-2024-38950 MEDIUM POC
6.5 Jun 26

Heap Buffer Overflow vulnerability in Libde265 v1.0.15 allows attackers to crash the application via crafted payload to

CVE-2023-27102 MEDIUM POC
6.5 Mar 15

Libde265 v1.0.11 was discovered to contain a segmentation violation via the function decoder_context::process_slice_segm
CVE-2023-24751 MEDIUM POC
6.5 Mar 01

libde265 v1.0.10 was discovered to contain a NULL pointer dereference in the mc_chroma function at motion.cc. Rated medi
CVE-2022-43253 MEDIUM POC
6.5 Nov 02

Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via put_unweighted_pred_16_fallback in fa
CVE-2022-43252 MEDIUM POC
6.5 Nov 02

Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via put_epel_16_fallback in fallback-moti

Same weakness CWE-122 – Heap-based Buffer Overflow

View all
CVE-2023-4911 HIGH POC
7.8
CVE-2023-27997 CRITICAL
9.8
CVE-2026-94127 CRITICAL POC
9.3
CVE-2025-25249 CRITICAL POC
9.8
CVE-2026-85880 HIGH POC
7.8
CVE-2025-24985 HIGH POC
7.8
CVE-2026-53362 HIGH POC
7.8
CVE-2025-21418 HIGH
7.8

Same technique Buffer Overflow

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CVE-2017-7269 CRITICAL POC
9.8
CVE-2015-5119 CRITICAL POC
9.8
CVE-2015-3113 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2020-0796 CRITICAL POC
10.0
CVE-2019-11043 CRITICAL POC
9.8
CVE-2009-0927 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8

References

Advisories & patches
ADVISORY https://ubuntu.com/security/notices/USN-8573-1 ADVISORY https://vuldb.com/vuln/269774 REF https://github.com/strukturag/libde265/issues/460 REF https://github.com/zhangteng0526/CVE-information/blob/main/CVE-2024-38949

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