CVE-2018-9340

Information disclosure via unchecked string-pool offsets

Published Nov 19, 2024 · Updated Nov 20, 2024

Out-of-bounds read in Android Framework 6.0 through 8.1 allows local users to disclose process memory through a malformed APK. ResStringPool::setTo subtracts unvalidated string and style offsets to calculate mStringPoolSize, permitting reads beyond the supplied resource data. A crafted APK must reach package installation; successful exploitation exposes memory data without enabling modification or service interruption.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Android Framework 6.0 through 8.1 allows local users to disclose process memory through a malformed APK. ResStringPool::setTo subtracts unvalidated string and style offsets to calculate mStringPoolSize, permitting reads beyond the supplied resource data. A crafted APK must reach package installation; successful exploitation exposes memory data without enabling modification or service interruption.

The record

CVE
CVE-2018-9340
Published
Nov 19, 2024
Updated
Nov 20, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-787, CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6
  2. Affected versionversion=6.0.1
  3. Affected versionversion=7
  4. Affected versionversion=8
  5. Affected versionversion=8.1
  6. Affected versionversion=nyc-mr1-dev
  7. Affected versionversion=nyc-mr2-dev

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=6; version=6.0.1; version=7; version=8; version=8.1; version=nyc-mr1-dev; version=nyc-mr2-dev

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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