CVE-2020-4363 Memory corruption in DB2 for Linux- UNIX and Windows

What is CVE-2020-4363?

CVE-2020-4363 is a high-severity memory corruption vulnerability in Ibm Db2, published on 1 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-120

Which versions are affected by CVE-2020-4363?

It affects 1 product.

Products include Ibm Db2.

How do I fix CVE-2020-4363?

No fix has been published for CVE-2020-4363 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-2020-4363 being exploited?

There is no known exploitation of CVE-2020-4363 in the wild and no public exploit code.

Other vulnerabilities in Ibm Db2

• CVE-2012-1797 IBM DB2 9.5 uses world-writable permissions for nodes.reg, which has unspecified impact and attack vectors. Critical 10.0
• CVE-2010-3731 Memory corruption in n/a Critical 10.0
• CVE-2010-3193 Other in n/a Critical 10.0
• CVE-2009-4335 Other in n/a Critical 10.0
• CVE-2009-3473 Missing authorization in n/a Critical 10.0

All Ibm Db2 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8r27-3w4c-2mfp.