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Unrated severityNVD Advisory· Published Jun 10, 2020· Updated Sep 16, 2024

CVE-2020-4436

CVE-2020-4436

Description

Certain IBM Aspera applications are vulnerable to buffer overflow after valid authentication, which could allow an attacker with intimate knowledge of the system to execute arbitrary code through a service. IBM X-Force ID: 180902.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Buffer overflow in IBM Aspera applications allows authenticated attackers with system knowledge to execute arbitrary code.

Vulnerability

A buffer overflow vulnerability exists in certain IBM Aspera applications after valid authentication. The flaw can be triggered through a service, requiring the attacker to have intimate knowledge of the system. The vulnerability is present in versions prior to the fixed releases listed in the IBM security bulletin [1].

Exploitation

An attacker must first authenticate to the affected Aspera application and possess detailed knowledge of the system's internals. No user interaction is required beyond authentication. The attack vector is network-based with low complexity (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) [1].

Impact

Successful exploitation allows the attacker to execute arbitrary code in the context of the affected service. This leads to complete compromise of confidentiality, integrity, and availability (CVSS base score 8.8) [1].

Mitigation

IBM has released fixes for the affected Aspera applications as detailed in the security bulletin [1]. Users should apply the updates to the specified product versions. No workarounds are documented; upgrading is the recommended action.

References
  1. Security Bulletin: Various vulnerabilities affecting certain Aspera applications (CVE-2020-4432, CVE-2020-4433, CVE-2020-4434, CVE-2020-4435, CVE-2020-4436)

AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.

Affected products

11
  • IBM/Asperallm-fuzzy
  • IBM/Aspera Application Platform On Demandv5
    Range: 3.7.4
  • IBM/Aspera Faspex On Demandv5
    Range: 3.7.4
  • IBM/Aspera High-Speed Transfercpe-rescue2 versions
    3.9.3+ 1 more
    • (no CPE)range: 3.9.3
    • (no CPE)range: 3.9.3
  • IBM/Aspera High-Speed Transfer Server for Cloud Pak for Integration (CP4I)v5
    Range: 3.9.10
  • IBM/Aspera Proxy Serverv5
    Range: 1.4.3
  • IBM/Aspera Server On Demandv5
    Range: 3.7.4
  • IBM/Aspera Sharescpe-rescue
    Range: 3.7.4
  • IBM/Aspera Streamingv5
    Range: 3.9.3
  • IBM/Aspera Transfer Cluster Managerv5
    Range: 1.3.1

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

2

News mentions

0

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