Attacker Value
Unknown
0
A malicious client can overflow a reference counter in ISC dhcpd
0
CVE ID
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A malicious client can overflow a reference counter in ISC dhcpd
(Last updated November 27, 2024) ▾
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Description
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 –> 4.1-ESV-R15, 4.2.0 –> 4.2.8, 4.3.0 –> 4.3.6, 4.4.0.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
Products
- debian linux 7.0,
- debian linux 8.0,
- debian linux 9.0,
- dhcp,
- dhcp 4.1-esv,
- dhcp 4.1.0,
- dhcp 4.4.0,
- enterprise linux desktop 6.0,
- enterprise linux desktop 7.0,
- enterprise linux server 6.0,
- enterprise linux server 7.0,
- enterprise linux server aus 7.4,
- enterprise linux server aus 7.6,
- enterprise linux server eus 7.4,
- enterprise linux server eus 7.5,
- enterprise linux server eus 7.6,
- enterprise linux workstation 6.0,
- enterprise linux workstation 7.0,
- ubuntu linux 14.04,
- ubuntu linux 16.04,
- ubuntu linux 17.10
References
Advisory
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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