Summary
It was discovered that AOM incorrectly handled the first-pass statistics
buffer in Look-Ahead Processing (LAP) mode. An attacker could possibly use
this issue to cause a heap buffer overflow, leading to a denial of service
or possibly execute arbitrary code. (CVE-2026-56208)
It was discovered that AOM incorrectly validated spatial and temporal
layer IDs in the SVC (Scalable Video Coding) encoder controls. An attacker
could possibly use this issue to write to an arbitrary memory address, read
out-of-bounds heap memory, or execute arbitrary code. (CVE-2026-56209,
CVE-2026-56210, CVE-2026-56211)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 24.04 LTS 24.04:LTS | aom | 3.8.2-2ubuntu0.2 |
| Ubuntu · 26.04 LTS 26.04:LTS | aom | 3.13.1-2ubuntu0.1 |
| Ubuntu · Pro 22.04 LTS Pro:22.04:LTS | aom | 3.3.0-1ubuntu0.1+esm1 |
Vulnerabilities 4
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High 7.6
Libaom: libaom: heap buffer overflow in av1 encoder first-pass stats buffer via lap mode
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…
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High 7.1
Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack
An arbitrary address write 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 an attacker to inject an arbitrary pointer into the cyclic refresh…
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High 7.1
Libaom: libaom: heap-buffer-overflow read via missing bounds check in ctrl_set_layer_id
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 lay…
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High 7.1
Libaom: libaom: remote code execution via svc layer context handling with attacker-controlled frames
A remote code execution vulnerability was found in libaom, the reference AV1 codec implementation. Insufficient bounds validation in the AV1 encoder's SVC (Scalable Video Coding) layer ID control allows an attacker to supply crafted video frame pixels that ov…