CVE-2023-34966
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
0.033 Low
EPSS
Percentile
91.4%
An infinite loop vulnerability was found in Samba’s mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.
Affected configurations
References
access.redhat.com/errata/RHSA-2023:6667
access.redhat.com/errata/RHSA-2023:7139
access.redhat.com/errata/RHSA-2024:0423
access.redhat.com/errata/RHSA-2024:0580
access.redhat.com/errata/RHSA-2024:4101
access.redhat.com/security/cve/CVE-2023-34966
bugzilla.redhat.com/show_bug.cgi?id=2222793
lists.fedoraproject.org/archives/list/[email protected]/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
lists.fedoraproject.org/archives/list/[email protected]/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
security.netapp.com/advisory/ntap-20230731-0010/
www.debian.org/security/2023/dsa-5477
www.samba.org/samba/security/CVE-2023-34966
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.3 High
AI Score
Confidence
High
0.033 Low
EPSS
Percentile
91.4%