Security Bulletin
Summary
Vulnerabilities in Samba and glibc affect OS Image for Red Hat Enterprise Linux Systems shipped with Cloud Pak System.
Vulnerability Details
CVEID: CVE-2023-4806
DESCRIPTION: GNU glibc is vulnerable to a denial of service, caused by a use-after-free flaw in the getaddrinfo() function. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/266465 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-2023-34968
DESCRIPTION: Samba could allow a remote attacker to obtain sensitive information, caused by a flaw in the Spotlight protocol. By sending a specially crafted RPC request, an attacker could exploit this vulnerability to obtain the real server-side share path information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261222 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2022-1615
DESCRIPTION: Samba could allow a local attacker to obtain sensitive information, caused by a flaw in the gnutls_rnd() function. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain predictable random values information, and use this information to launch further attacks against the affected system.
CVSS Base score: 5.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/235119 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2023-4911
DESCRIPTION: glibc could allow a local authenticated attacker to gain elevated privileges on the system, caused by a buffer overflow in the dynamic loader's processing of the GLIBC_TUNABLES environment variable. By sending overly long data, an attacker could exploit this vulnerability to gain root privileges on the system.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/267581 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2022-32746
DESCRIPTION: Samba is vulnerable to a denial of service, caused by a use-after-free flaw when handling LDAP requests. By sending a specially-crafted LDAP request, a remote authenticated attacker could exploit this vulnerability to cause a corrupted log output or a crash.
CVSS Base score: 5.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/232308 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L)
CVEID: CVE-2023-34967
DESCRIPTION: Samba is vulnerable to a denial of service, caused by a type confusion flaw in the dalloc_value_for_key() function. By sending specially crafted Spotlight mdssvc RPC packets, a remote attacker could exploit this vulnerability to cause the worker process to crash.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/261221 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
| Affected Product(s) | Version(s) |
|
Cloud Pak System | 2.3.3.0 |
|
Cloud Pak System | 2.3.3.3, 2.3.3.3ifix1 |
|
Cloud Pak System | 2.3.3.4 |
|
Cloud Pak System | 2.3.3.5 |
|
Cloud Pak System | 2.3.3.6, v2.3.3.6 Ifix1, 2.3.3.6 iFix2 |
|
OS Image for Red Hat Enterprise Linux Systems | 4.0.0.0 |
|
OS Image for Red Hat Enterprise Linux Systems | 4.0.1.0 |
|
OS Image for Red Hat Enterprise Linux Systems | 4.0.2.0 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by applying the fix below.
For Cloud Pak System on Intel
upgrade to Cloud Pak System v2.3.4.0 for Intel at IBM Fix Central
information on upgrading here http://www.ibm.com/support/docview.wss?uid=ibm10887959
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
31 Jul 2024: 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
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
31 July 2024
UID
ibm17148477