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YoctoApplication · Linuxfoundation

CVE-2023-20803

MEDIUM · 6.5 CVSS v3.1 Published 2023-08-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
65/100
Remediation priority · Elevated

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In imgsys, there is a possible memory corruption due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS07326455; Issue ID: ALPS07326374.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A memory corruption vulnerability exists in the imgsys (image processing system) component due to improper input validation. An attacker with System execution privileges and requiring user interaction can exploit this to achieve local privilege escalation. The issue is tracked as ALPS07326374 with patch ALPS07326455 addressing the vulnerability.

MitigationApply vendor patch ALPS07326455 to address the improper input validation in imgsys. Since the vulnerability requires System-level access and user interaction, ensure proper access controls and validate that the patch does not introduce new attack surfaces.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
YoctoApplication
Affected:= 4.0
AndroidOperating system
Affected:= 12.0= 13.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the operating system and version
    Run 'getprop ro.build.version.release' on Android or check '/etc/os-release' on Yocto to confirm the system version
    Affected if The system is running Android 12.0, Android 13.0, or Linuxfoundation Yocto 4.0
  2. Locate the imgsys component
    Search for imgsys-related binaries, services, or drivers on the system using 'find / -name *imgsys* 2>/dev/null' or 'ls /vendor/lib/hw/*imgsys*' on Android
    Affected if The imgsys (image processing system) component is present on the device
  3. Verify if the imgsys service or daemon is running
    Check running processes for imgsys-related services using 'ps -A | grep -i imgsys' or check '/vendor/bin/hw/' directory contents on Android
    Affected if The imgsys service or daemon is actively running on the system
  4. Check the imgsys driver or library version
    If a shared library or driver file is found (typically in /vendor/lib/ or /system/lib/), run 'ls -la <path>' to check the file modification date or check any available version information
    Affected if The imgsys component version cannot be verified as patched or is older than the patch date (ALPS07326455)
  5. Confirm System-level access and user interaction requirements
    Review the application permissions and execution context required to trigger the imgsys processing to understand if your deployment model exposes this attack surface
    Affected if Applications with System execution privileges can trigger the imgsys component and user interaction can be induced

The environment is likely affected if it runs Android 12.0 or 13.0 or Yocto 4.0 and has the imgsys image processing component present and executable, without vendor patch ALPS07326455 applied.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patch ALPS07326455 to address the improper input validation in imgsys. Since the vulnerability requires System-level access and user interaction, ensure proper access controls and validate that the patch does not introduce new attack surfaces.

Fix this in Yocto Scoped from the published advisory
  • Consultation6.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,260
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-20803 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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