← CVE Intelligence

CVE-2026-56208

Libaom: libaom: heap buffer overflow in av1 encoder first-pass stats buffer via lap mode PUBLISHED

Description (CNA)

A heap buffer overflow vulnerability was found in libaom, the reference AV1 codec implementation. A flaw in the AV1 encoder's Look-Ahead Processing (LAP) mode causes the first-pass stats ring buffer wrap-around guard to be bypassed when g_lag_in_frames is set to 1 or higher. This results in a 232-byte out-of-bounds write on every encoded frame after the second, corrupting adjacent heap objects. An attacker who can influence encoder configuration in a transcoding service or WebRTC session could exploit this to cause a denial of service (process crash) or potentially achieve code execution.

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:140.13.0-1.el10_0 before *
Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:140.13.0-1.el7_9 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:140.13.0-1.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:140.13.0-1.el8_4 before *
Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:140.13.0-1.el8_4 before *
Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:140.13.0-1.el8_6 before *
Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-Onunaffected 0:140.13.0-1.el8_6 before *
Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:140.13.0-1.el8_8 before *
Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutionsunaffected 0:140.13.0-1.el8_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:140.13.0-1.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsunaffected 0:140.13.0-1.el9_2 before *
Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsunaffected 0:140.13.0-1.el9_4 before *
Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Supportunaffected 0:140.13.0-1.el9_6 before *
Red Hat / Red Hat Enterprise Linux AI 3.3 for RHEL 9unaffected 0:3.14.0-1.el9ai before *
Red Hat / Red Hat Enterprise Linux AI 3.4 for RHEL 9unaffected 0:3.14.0-1.el9ai before *
Red Hat / Red Hat Enterprise Linux AI 3.5 for RHEL 9unaffected 0:3.14.0-1.el9ai before *
Red Hat / Red Hat AI Inference Server 3.2unaffected 1787860580 before *
Red Hat / Red Hat AI Inference Server 3.2unaffected 1787772157 before *
Red Hat / Red Hat AI Inference Server 3.2unaffected 1787884873 before *
Red Hat / Red Hat AI Inference Server 3.3unaffected 1789508287 before *
Red Hat / Red Hat AI Inference Server 3.3unaffected 1789502493 before *
Red Hat / Red Hat AI Inference Server 3.3unaffected 1789504371 before *
Red Hat / Red Hat AI Inference Server 3.3unaffected 1789582776 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790936334 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790936351 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790850900 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790866732 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790936334 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790791893 before *
Red Hat / Red Hat Enterprise Linux AI 3.3unaffected 1790954179 before *
Red Hat / Red Hat Hardened Imagesunaffected 3.14.0-0.1.hum1 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137552 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137548 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137636 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137548 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137548 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137641 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137607 before *
Red Hat / Red Hat OpenShift AI 3.3unaffected 1789137636 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1786611800 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1787076778 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1787077779 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1787076481 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197680 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197530 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197632 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197747 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197549 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788199622 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197744 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1788197677 before *
Red Hat / Red Hat OpenShift AI 3.4unaffected 1791785804 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788198404 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788198407 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197492 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197542 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197975 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197512 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197688 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788197385 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1788198016 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703552 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703656 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703557 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703645 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703554 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703554 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703630 before *
Red Hat / Red Hat OpenShift AI 3.5unaffected 1790703706 before *
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat AI Inference Serveraffected
Red Hat / Red Hat Enterprise Linux 10affected
Red Hat / Red Hat Enterprise Linux 10unaffected
Red Hat / Red Hat Enterprise Linux 8affected
Red Hat / Red Hat Enterprise Linux 9unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected
Red Hat / Red Hat OpenShift AI (RHOAI)unaffected

CWE

CWE-122

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A heap buffer overflow vulnerability was found in libaom, the reference AV1 codec implementation. A flaw in the AV1 encoder's Look-Ahead Processing (LAP) mode causes the first-pass stats ring buffer wrap-around guard to be bypassed when g_lag_in_frames is set to 1 or higher. This results in a 232-byte out-of-bounds write on every encoded frame after the second, corrupting adjacent heap objects. An attacker who can influence encoder configuration in a transcoding service or WebRTC session could exploit this to cause a denial of service (process crash) or potentially achieve code execution.