DEBIAN-CVE-2026-42627

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Source
https://security-tracker.debian.org/tracker/CVE-2026-42627
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42627.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-42627
Upstream
  • CVE-2026-42627
Published
2026-05-22T18:16:22Z
Modified
2026-09-14T17:03:37Z
Severity
  • 6.2 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In Arm ArmNN through 2026-03-27, an integer overflow in TensorShape::GetNumElements() in armnn/Tensor.cpp allows a crafted TFLite model file to bypass buffer size validation and trigger a heap-based buffer over-read during model optimization. The overflow occurs when multiplying tensor dimensions using 32-bit unsigned arithmetic without overflow detection, causing GetNumBytes() to return an understated allocation size. During Optimize()->InferOutputShapes(), the BatchToSpaceNdLayer reads beyond the allocated buffer.

References

Affected packages

Debian:12 / armnn

Package

Name
armnn
Purl
pkg:deb/debian/armnn?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

20.*
20.08-12
20.08-13
23.*
23.08-2
23.08-3
23.08-4
23.08-4.1~exp1
23.08-4.1~exp2
23.08-4.1
23.08-5
23.08-5.1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42627.json"

Debian:13 / armnn

Package

Name
armnn
Purl
pkg:deb/debian/armnn?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

23.*
23.08-5
23.08-5.1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42627.json"

Debian:14 / armnn

Package

Name
armnn
Purl
pkg:deb/debian/armnn?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

23.*
23.08-5
23.08-5.1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42627.json"