Security Bulletin
Summary
IBM HTTP Server (IHS) is shipped as a component of IBM Rational ClearCase. Information about a security vulnerability affecting IHS has been published in a security bulletin. (CVE-2021-45960, CVE-2022-22822, CVE-2022-22823, CVE-2022-22824, CVE-2022-22825, CVE-2022-22826, CVE-2022-22827, CVE-2022-23990, CVE-2021-46143, CVE-2022-23852)
Vulnerability Details
CVEID: CVE-2021-45960
DESCRIPTION: Expat (aka libexpat) is vulnerable to a denial of service, caused by a realloc misbehavior issue in the storeAtts function in xmlparse.c. By persuading a victim to open a specially-crafted XML content, a remote attacker could exploit this vulnerability to cause a the application to crash.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216473 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-2022-22822
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of addBinding in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216908 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-2022-22823
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of build_model in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216907 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-2022-22824
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of defineAttribute in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216906 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-2022-22825
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of lookup in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216905 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-2022-22826
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of nextScaffoldPart in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216904 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-2022-22827
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of storeAtts in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216901 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-2022-23990
DESCRIPTION: Expat (aka libexpat) could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in the doProlog function. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/218206 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-46143
DESCRIPTION: Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of m_groupSize in doProlog in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216875 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-2022-23852
DESCRIPTION: Expat (aka libexpat) could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in the XML_GetBuffer function. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/218007 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-1999-0001
DESCRIPTION: ip_input.c in BSD-derived TCP/IP implementations allows remote attackers to cause a denial of service (crash or hang) via crafted packets.
CVSS Base score: 0
CVSS Vector:
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Rational ClearCase | 8.0.0 |
| IBM Rational ClearCase | 9.0 |
| IBM Rational ClearCase | 9.0.1 |
| IBM Rational ClearCase | 9.1 |
| IBM Rational ClearCase | 9.0.2 |
| IBM Rational ClearCase | 8.0.1 |
Remediation/Fixes
Refer to the following security bulletin(s) for vulnerability details and information about fixes addressed by IBM WebSphere Application Server (WAS) which is shipped with IBM Rational ClearCase.
| Principal Product and Version(s) | Affected Supporting Product and Version | Affected Supporting Product Security Bulletin |
|
IBM Rational ClearCase, versions 8.0.0.x, 8.0.1.x, 9.0.0.x, 9.0.1.x, 9.0.2.x, 9.1.x |
IBM HTTP Server version 7.0, 8.0, 8.5, 9.0 |
Security Bulletin: Multiple vulnerabilities in IBM HTTP Server used by IBM WebSphere Application Server due to Expat vulnerabilities ( CVE-2021-45960, CVE-2022-22822, CVE-2022-22823, CVE-2022-22824, CVE-2022-22825, CVE-2022-22826, CVE-2022-22827, CVE-2022-23990, CVE-2021-46143, CVE-2022-23852 )
|
|
ClearCase Versions
|
Applying the fix
|
| 8.0.0.x, 8.0.1.x, 9.0.0.x, 9.0.1.x, 9.0.2.x, 9.1.x | Apply the appropriate IBM HTTP Server fix (see bulletin link above) directly to your CCRC WAN server host. No ClearCase-specific steps are necessary. |
For 8.0.x and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
1 Apr 2022: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
01 April 2022
Initial Publish date:
01 April 2022
UID
ibm16568685