CVE-2012-3955

Publication date 13 September 2012

Last updated 24 July 2024

Ubuntu priority

ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
dhcp3	12.04 LTS precise	Not in release
	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not affected
isc-dhcp	12.04 LTS precise	Fixed 4.1.ESV-R4-0ubuntu5.5
	11.10 oneiric	Fixed 4.1.1-P1-17ubuntu10.5
	11.04 natty	Fixed 4.1.1-P1-15ubuntu9.6
	10.04 LTS lucid	Not in release
	8.04 LTS hardy	Not in release

How can I get the fixes?
What do statuses mean?

Notes

mdeslaur

no ipv6 support in 3.x

References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-1571-1
DHCP vulnerability
18 September 2012

Other references

https://kb.isc.org/article/AA-00779/75
https://www.cve.org/CVERecord?id=CVE-2012-3955