IBM68A9CA1A744AAD86BFA6360FB2A40103C7AC9CCEBB1698D8C114B5F606908E88Security Bulletin: IBM® Db2® is vulnerable to a denial of service when a statement is run on columnar tables under specific conditions (CVE-2023-50308)
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
24.4%
Summary
IBM® Db2® under certain circumstances could allow an authenticated user to the database to cause a denial of service when a statement is run on columnar tables.
Vulnerability Details
CVEID:CVE-2023-50308
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) under certain circumstances could allow an authenticated user to the database to cause a denial of service when a statement is run on columnar tables.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/273393 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) | Applicable Editions |
|---|---|---|
| IBM® Db2® |
11.5.x
|
Server
All platforms are affected.
Remediation/Fixes
Customers running any vulnerable fixpack level of an affected Program, V11.5, can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V11.5.9. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.
| Release | Fixed in fix pack | APAR | Download URL |
|---|---|---|---|
| V11.5 | TBD | DT246563 |
Special Build for V11.5.0:
Special Build for V11.5.8:
AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86
Special Build for V11.5.9:
AIX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Windows 32-bit, x86
Windows 64-bit, x86
IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.
Workarounds and Mitigations
None
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| db2 for linux, unix and windows | eq | 11.5 |
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
24.4%