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CVE-2026-56210 on CTRL-OS 26.05

Aliases: CVE-2026-56210

Packages: libaom

Status: Plausible

Advisory Information

A heap-buffer-overflow read vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows setting a spatial_layer_id exceeding the configured number of layers. This causes an out-of-bounds heap read of approximately 40,728 bytes when computing a layer context array index. An attacker who can influence SVC encoder parameters in a network-facing service could exploit this for information disclosure (heap content leak) or denial of service (segmentation fault from hitting unmapped memory).

Updates

2026-08-07 10:16 CEST

Metadata changes:

  • Status for package libaom: “Plausible”

2026-08-07 10:13 CEST

Metadata changes:

  • Status for package libaom: “Acknowledged”

(Amended on: 2026-08-07 10:14 CEST)