CVE intelligence and bounded remediation

CVE-2023-21903 — Oracle Banking Virtual Account Management security vulnerability

Medium CVSS 5.3

Vulnerability in the Oracle Banking Virtual Account Management product of Oracle Financial Services Applications (component: OBVAM Internal Tfr Domain). Supported versions that are affected are 14.5, 14.6 and 14.7. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Banking Virtual Account Management. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Banking Virtual Account Management accessible data as well as unauthorized update, insert or delete access to some of Oracle Banking Virtual Account Management accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Banking Virtual Account Management. CVSS 3.1 Base Score 5.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:L).

Severity
Medium
CVSS
5.3 (3.1)
Published
2023-04-18
CISA KEV
Not currently listed
Ecosystem
software/application

Affected products

  • oracle / banking_virtual_account_management / 14.5
  • oracle / banking_virtual_account_management / 14.6
  • oracle / banking_virtual_account_management / 14.7

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

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