CVE intelligence and bounded remediation

CVE-2020-4363 — Ibm Db2 security vulnerability

High CVSS 8.4

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. IBM X-Force ID: 178960.

Severity
High
CVSS
8.4 (3.0)
Published
2020-07-01
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-120

Affected products

  • ibm / db2 / 9.7.0.0
  • ibm / db2 / 10.1.0.0
  • ibm / db2 / 10.5.0.0
  • ibm / db2 / 11.1.0.0
  • ibm / db2 / 11.5.0.0

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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