Resource management error in DHCP - CVE-2012-3954
Published: July 25, 2012 / Updated: July 28, 2020
Vulnerability identifier: #VU32778
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2012-3954
CWE-ID: CWE-399
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Multiple memory leaks in ISC DHCP 4.1.x and 4.2.x before 4.2.4-P1 and 4.1-ESV before 4.1-ESV-R6 allow remote attackers to cause a denial of service (memory consumption) by sending many requests.
Affected software
DHCP
Amazon Linux AMI
Ubuntu
Slackware Linux
dhcp (Alpine package)
isc-dhcp-server (Ubuntu package)
Amazon Linux AMI
Ubuntu
Slackware Linux
dhcp (Alpine package)
isc-dhcp-server (Ubuntu package)
How to mitigate CVE-2012-3954
Install update from vendor's website.
dhcp (Alpine package) - update to 4.2.4_p1-r0
isc-dhcp-server (Ubuntu package) - addressed in versions 4.1.1-P1-15ubuntu9.4, 4.1.1-P1-17ubuntu10.3, 4.1.ESV-R4-0ubuntu5.2
isc-dhcp-server (Ubuntu package) - addressed in versions 4.1.1-P1-15ubuntu9.4, 4.1.1-P1-17ubuntu10.3, 4.1.ESV-R4-0ubuntu5.2
External References
- http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html
- http://rhn.redhat.com/errata/RHSA-2012-1141.html
- http://security.gentoo.org/glsa/glsa-201301-06.xml
- http://www.debian.org/security/2012/dsa-2516
- http://www.debian.org/security/2012/dsa-2519
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:115
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:116
- http://www.securityfocus.com/bid/54665
- http://www.securitytracker.com/id?1027300
- http://www.ubuntu.com/usn/USN-1519-1
- https://kb.isc.org/article/AA-00737