PT-2020-6098 · Ibm · Db2

Published 2020-06-30 · Updated 2020-07-07 · CVE-2020-4387

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) versions 9.7, 10.1, 10.5, 11.1, and 11.5

Description The issue is caused by synchronization errors when using a shared resource, allowing a local user to obtain sensitive information using a race condition of a symbolic link. This could permit an attacker to gain unauthorized access to protected information.

Recommendations For versions 9.7, 10.1, 10.5, 11.1, and 11.5, consider restricting access to shared resources to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using symbolic links in the affected DB2 for Linux, UNIX and Windows installations. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2021-03010

CVE-2020-4387

Affected Products

Db2

References · 6

• https://osv.dev/vulnerability/CVE-2020-4387 · Vendor Advisory
• https://ibm.com/support/pages/node/6242336 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/179269 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-4387 · Security Note
• https://bdu.fstec.ru/vul/2021-03010 · Security Note
• https://t.me/cvenotify/4772 · Telegram Post