CVE-2012-3955
First published: Fri Sep 14 2012(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ISC DHCP | =4.1-esv | |
| ISC DHCP | =4.1-esv-r1 | |
| ISC DHCP | =4.1-esv-r2 | |
| ISC DHCP | =4.1-esv-r3 | |
| ISC DHCP | =4.1-esv-r3_b1 | |
| ISC DHCP | =4.1-esv-r4 | |
| ISC DHCP | =4.1-esv-r5 | |
| ISC DHCP | =4.1-esv-r5_b1 | |
| ISC DHCP | =4.1-esv-r5_rc1 | |
| ISC DHCP | =4.1-esv-r5_rc2 | |
| ISC DHCP | =4.1-esv-r6 | |
| ISC DHCP | =4.1-esv-rc1 | |
| ISC DHCP | =4.1.0 | |
| ISC DHCP | =4.1.0-a1 | |
| ISC DHCP | =4.1.0-a2 | |
| ISC DHCP | =4.1.0-b1 | |
| ISC DHCP | =4.1.1 | |
| ISC DHCP | =4.1.1-b1 | |
| ISC DHCP | =4.1.1-b2 | |
| ISC DHCP | =4.1.1-b3 | |
| ISC DHCP | =4.1.1-rc1 | |
| ISC DHCP | =4.1.2 | |
| ISC DHCP | =4.1.2-b1 | |
| ISC DHCP | =4.1.2-p1 | |
| ISC DHCP | =4.1.2-rc1 | |
| Debian Linux | =6.0 | |
| Debian Linux | =7.0 | |
| Ubuntu | =10.04 | |
| Ubuntu | =11.04 | |
| Ubuntu | =11.10 | |
| Ubuntu | =12.04 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.html
- http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.html
- http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.html
- http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.html
- http://rhn.redhat.com/errata/RHSA-2013-0504.html
- http://secunia.com/advisories/51318
- http://security.gentoo.org/glsa/glsa-201301-06.xml
- http://www.debian.org/security/2012/dsa-2551
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:153
- http://www.securityfocus.com/bid/55530
- http://www.securitytracker.com/id?1027528
- http://www.ubuntu.com/usn/USN-1571-1
- https://blogs.oracle.com/sunsecurity/entry/cve_2012_3955_denial_of
- https://kb.isc.org/article/AA-00779
Frequently Asked Questions
What is the severity of CVE-2012-3955?
CVE-2012-3955 is classified as a denial of service vulnerability that can cause the ISC DHCP server to crash.
How do I fix CVE-2012-3955?
To resolve CVE-2012-3955, update to ISC DHCP version 4.1-ESV-R7 or 4.2.4-P2 or later.
What software is affected by CVE-2012-3955?
CVE-2012-3955 affects ISC DHCP versions 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2.
Can CVE-2012-3955 be exploited remotely?
Yes, CVE-2012-3955 allows remote attackers to exploit the vulnerability under certain circumstances.
What type of attack does CVE-2012-3955 facilitate?
CVE-2012-3955 facilitates a denial of service attack leading to a crash of the DHCP server.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/author
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/isc
- canonical/isc dhcp
- version/isc dhcp/4.1-esv
- version/isc dhcp/4.1-esv-r1
- version/isc dhcp/4.1-esv-r2
- version/isc dhcp/4.1-esv-r3
- version/isc dhcp/4.1-esv-r3_b1
- version/isc dhcp/4.1-esv-r4
- version/isc dhcp/4.1-esv-r5
- version/isc dhcp/4.1-esv-r5_b1
- version/isc dhcp/4.1-esv-r5_rc1
- version/isc dhcp/4.1-esv-r5_rc2
- version/isc dhcp/4.1-esv-r6
- version/isc dhcp/4.1-esv-rc1
- version/isc dhcp/4.1.0
- version/isc dhcp/4.1.0-a1
- version/isc dhcp/4.1.0-a2
- version/isc dhcp/4.1.0-b1
- version/isc dhcp/4.1.1
- version/isc dhcp/4.1.1-b1
- version/isc dhcp/4.1.1-b2
- version/isc dhcp/4.1.1-b3
- version/isc dhcp/4.1.1-rc1
- version/isc dhcp/4.1.2
- version/isc dhcp/4.1.2-b1
- version/isc dhcp/4.1.2-p1
- version/isc dhcp/4.1.2-rc1
- vendor/debian
- canonical/debian linux
- version/debian linux/6.0
- version/debian linux/7.0
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/10.04
- version/ubuntu/11.04
- version/ubuntu/11.10
- version/ubuntu/12.04