Buffer overflow in DHCP - CVE-2012-3571

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Main Vulnerability Database Vulnerabilities #VU32777

Buffer overflow in DHCP - CVE-2012-3571

Published: July 25, 2012 / Updated: July 28, 2020


Vulnerability identifier: #VU32777
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3571
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.


Affected software

DHCP
Amazon Linux AMI
dhcp (Alpine package)

How to mitigate CVE-2012-3571

Install update from vendor's website.

DHCP - update to 4.2.5
dhcp (Alpine package) - update to 4.2.4_p1-r0

External References

Related Security Bulletins