CVE-2021-20546 Memory corruption in Spectrum Protect for Space Management
A local attacker can cause a denial of service via a stack-based buffer overflow in the IBM Spectrum Protect Client.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-20546?
CVE-2021-20546 is a medium-severity memory corruption vulnerability in IBM Spectrum Protect for Space Management, published on 26 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the application to crash. IBM X-Force ID: 198934
Weakness: CWE-787
Which versions are affected by CVE-2021-20546?
It affects 2 products.
Products include Ibm Spectrum Protect Client, Ibm Spectrum Protect for Space Management.
How do I fix CVE-2021-20546?
No fix has been published for CVE-2021-20546 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-20546 being exploited?
There is no known exploitation of CVE-2021-20546 in the wild and no public exploit code.
Other vulnerabilities in IBM Spectrum Protect for Space Management
- CVE-2021-29672 Memory corruption in Spectrum Protect for Space Management
- CVE-2020-4494 Auth bypass in Spectrum Protect Client (AIX)
- CVE-2023-33832 IBM Storage Protect denial of service
- CVE-2022-22478 Information disclosure in Spectrum Protect Client
- CVE-2022-22474 Denial of service in Spectrum Protect Client
Sources
Also known as GHSA-x4wg-5xxw-qhh7.