Cyber Resilience

CVE-2023-49501

Memory Safety in Fedoraproject Fedora 38 … 40

Public PoCMemory Safety
Published
19 April 2024
Modified
04 November 2025
Patch / advisory
CVSS Score v3.1 8.0
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
EPSS Score 0.0039 32th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2023-49501 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Fedoraproject Fedora. Its CVSS base score is 8.0 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 32th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

Buffer Overflow vulnerability in Ffmpeg v.n6.1-3-g466799d4f5 allows a local attacker to execute arbitrary code via the config_eq_output function in the libavfilter/asrc_afirsrc.c:495:30 component.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
Why these techniques?

Buffer overflow in FFmpeg allows local arbitrary code execution, facilitating exploitation for privilege escalation.

CVEs Like This One

CVE-2023-49528Same product: Fedoraproject Fedora
CVE-2024-31582Same product: Fedoraproject Fedora
CVE-2023-50009Same product: Fedoraproject Fedora
CVE-2023-51795Same product: Fedoraproject Fedora
CVE-2023-49502Same product: Fedoraproject Fedora
CVE-2024-31578Same product: Fedoraproject Fedora
CVE-2023-51797Same product: Fedoraproject Fedora
CVE-2024-31585Same product: Fedoraproject Fedora
CVE-2023-51798Same product: Fedoraproject Fedora
CVE-2023-50007Same product: Fedoraproject Fedora

Affected Assets

ffmpeg
ffmpeg
6.1
fedoraproject
fedora
38, 39, 40

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V1.4.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 full match
prevents

Secure-development practices directly require bounds checking and safe memory handling that prevent heap overflows.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover heap-overflow flaws but does not prevent their introduction in code.

PR.PS-02 partial match
prevents

Timely patching removes known heap-overflow instances after they exist.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development and acceptance can detect heap overflows before release.

prevents

Secure development lifecycle mandates practices that reduce the likelihood of introducing heap overflows.

prevents

Application security requirements can specify bounds-checking and safe memory APIs that mitigate heap overflows.

prevents

Secure architecture and engineering principles include memory-safety and input-validation controls that address heap overflows.

prevents

Secure coding standards directly prescribe techniques (safe functions, bounds checks) that prevent heap-based buffer overflows.

none

Change management ensures controlled deployment of fixes for discovered heap-overflow vulnerabilities.

References