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HistoryApr 29, 2022 - 7:27 p.m.

Security Bulletin: Multiple vulnerabilities in IBM HTTP Server shipped in IBM WebSphere Application Server Patterns due to Expat vulnerabilities

2022-04-2919:27:25
www.ibm.com
34
ibm websphere application server patterns
expat library vulnerabilities
ibm http server
cve-2022-25313
cve-2022-25315
cve-2022-25235
cve-2022-25236

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.035

Percentile

91.6%

Summary

IBM WebSphere Application Server is shipped as a component of IBM WebSphere Application Server Patterns. There are multiple vulnerabilities in the Expat library affecting the IBM HTTP Server used by IBM WebSphere Application Server (CVE-2022-25313, CVE-2022-25315, CVE-2022-25235,CVE-2022-25236). Information about security vulnerabilities affecting IBM WebSphere Application Server has been published in a security bulletin.

Vulnerability Details

CVEID:CVE-2022-25315
**DESCRIPTION:**libexpat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in storeRawNames. By persuading a victim to open a specially-crafted file, an attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219945 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2022-25313
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by stack exhaustion in build_model. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability using a large nesting depth in the DTD element to cause a denial of service.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219947 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2022-25235
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by improper input validation in xmltok_impl.c. By persuading a victim to open a specially-crafted content with malformed encoding, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219782 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID:CVE-2022-25236
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by improper protection against insertion of namesep characters into namespace URIs in xmlparse.c. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219784 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Principal Product and Version(s)

|

Affected Supporting Product and Version

—|—

IBM WebSphere Application Server Patterns:

  • 1.0.0.1 - 1.0.0.7
  • 2.2.0.0 - 2.3.3.3
    |

IBM HTTP Server:

  • 9.0
  • 8.5
  • 8.0

Remediation/Fixes

Please consult the following security bulletin for vulnerability details and information about fixes.

Important: Please Read
Starting May 12th, 2022, “WebSphere Application Server Patterns” security bulletins will not include vulnerability notifications about products listed in the following table. You must subscribe to notifications for the individual products to receive their security bulletins, as indicated in the “My Notification Product Subscriptions” column.

Supporting Products

|

My Notification Product Subscriptions

—|—

WebSphere Application Server

WebSphere Application Server Network Deployment

WebSphere Application Server Liberty

|

WebSphere Application Server

IBM SDK, Java Technology Edition

|

Runtimes for Java Technology

IBM HTTP Server

|

IBM HTTP Server

See the section "**

Affected configurations

Vulners
Node
ibmwebsphere_application_serverMatchany

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.035

Percentile

91.6%