CVE intelligence and bounded remediation

CVE-2023-20725 — In preloader, there is a possible out of bounds write due to a missing bounds check

Medium CVSS 6.7

In preloader, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07734004 / ALPS07874358 (For MT6880, MT6890, MT6980, MT6990 only); Issue ID: ALPS07734004 / ALPS07874358 (For MT6880, MT6890, MT6980, MT6990 only).

Severity
Medium
CVSS
6.7 (3.1)
Published
2023-06-06
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-787

Affected products

  • rdkcentral / rdk-b / 2022q3
  • google / android / 12.0
  • google / android / 13.0
  • openwrt / openwrt / 19.07.0
  • openwrt / openwrt / 21.02.0

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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