Security Bulletin: IBM Db2 Web Query for i is vulnerable to a remote attacker bypassing security restrictions or to denial of service.

Summary

IBM Db2 Web Query for i is vulnerable to issues in multiple components. The components are used for multiple purposes in the underlying ibi WebFOCUS base product. The components are vulnerable to a remote attacker bypassing security restrictions (CVE-2023-34034 and CVE-2023-44981) and denial of service attacks (CVE-2023-5072, CVE-2023-34453, CVE-2023-34454, CVE-2023-34455, and CVE-2023-43642). This bulletin identifies the steps to take to address the vulnerabilities as described in the remediation/fixes section.

Vulnerability Details

CVEID:CVE-2023-34453
**DESCRIPTION:**snappy-java is vulnerable to a denial of service, caused by an integer overflow in the shuffle function. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/258186 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-5072
**DESCRIPTION:**JSON-java is vulnerable to a denial of service, caused by a bug in the parser. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268485 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-34455
**DESCRIPTION:**snappy-java is vulnerable to a denial of service, caused by the use of an unchecked chunk length in the hasNextChunk function. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/258190 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-34454
**DESCRIPTION:**snappy-java is vulnerable to a denial of service, caused by an integer overflow in the compress function. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/258188 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-43642
**DESCRIPTION:**snappy-java is vulnerable to a denial of service, caused by missing upper bound check on chunk length. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/267079 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-44981
**DESCRIPTION:**Apache ZooKeeper could allow a remote attacker to bypass security restrictions, caused by a flaw when SASL Quorum Peer authentication is enabled. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass authorization and allow arbitrary endpoints to join the cluster and begin propagating counterfeit changes.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/268362 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-34034
**DESCRIPTION:VMware Tanzu Spring Security could allow a remote attacker to bypass security restrictions, caused by a flaw when using "" as a pattern in the configuration for WebFlux. By using a specially crafted configuration, an attacker could exploit this vulnerability to bypass pattern matching rules.
CVSS Base score: 9.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261126 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerabilities now.

Release 2.4.0 is supported and can be fixed by applying Program Temporary Fixes (PTFs) to the IBM i.

The PTF numbers containing the fix for these vulnerabilities are in the following table.

IBM Db2 Web Query for i Release|**OS Release
**|5733WQX PTFs to apply for remediation
—|—|—
2.4.0|

7.4 and 7.5

|

SI85982
SI85987

Important note:_
IBM recommends that all users running unsupported versions of affected products upgrade to a supported and fixed version of affected products._

Workarounds and Mitigations

None