Vulnerability Details : CVE-2012-3955
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.
Vulnerability category: Denial of service
Threat overview for CVE-2012-3955
Top countries where our scanners detected CVE-2012-3955
Top open port discovered on systems with this issue
8200
IPs affected by CVE-2012-3955 341
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2012-3955!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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Exploit prediction scoring system (EPSS) score for CVE-2012-3955
Probability of exploitation activity in the next 30 days: 2.08%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 89 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-3955
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.1
|
HIGH | AV:N/AC:M/Au:N/C:N/I:N/A:C |
8.6
|
6.9
|
NIST |
References for CVE-2012-3955
-
http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.html
openSUSE-SU-2012:1252-1: moderate: dhcpMailing List;Third Party Advisory
-
http://www.debian.org/security/2012/dsa-2551
Debian -- Security Information -- DSA-2551-1 isc-dhcpThird Party Advisory
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http://rhn.redhat.com/errata/RHSA-2013-0504.html
RHSA-2013:0504 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://blogs.oracle.com/sunsecurity/entry/cve_2012_3955_denial_of
CVE-2012-3955 Denial of Service (DoS) vulnerability in ISC DHCP | Oracle Third Party Vulnerability Resolution BlogThird Party Advisory
-
http://www.securityfocus.com/bid/55530
ISC DHCP IPv6 Lease Expiration Handling Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.html
openSUSE-SU-2012:1254-1: moderate: dhcpMailing List;Third Party Advisory
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http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.html
[SECURITY] Fedora 18 Update: dhcp-4.2.4-15.P2.fc18Third Party Advisory
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https://kb.isc.org/article/AA-00779
CVE-2012-3955: Reducing the expiration time for an IPv6 lease may cause the server to crash - Security AdvisoriesVendor Advisory
-
http://www.securitytracker.com/id?1027528
ISC DHCP IPv6 Lease Expiration Bug Lets Remote Users Deny Service - SecurityTrackerThird Party Advisory;VDB Entry
-
http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.html
[SECURITY] Fedora 17 Update: dhcp-4.2.4-13.P2.fc17Third Party Advisory
-
http://www.ubuntu.com/usn/USN-1571-1
USN-1571-1: DHCP vulnerability | Ubuntu security noticesThird Party Advisory
-
http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.html
openSUSE-SU-2012:1234-1: moderate: dhcpMailing List;Third Party Advisory
-
http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.html
[SECURITY] Fedora 16 Update: dhcp-4.2.4-1.P2.fc16Third Party Advisory
-
http://www.mandriva.com/security/advisories?name=MDVSA-2012:153
mandriva.comThird Party Advisory
-
http://security.gentoo.org/glsa/glsa-201301-06.xml
ISC DHCP: Denial of Service (GLSA 201301-06) — Gentoo securityThird Party Advisory
Products affected by CVE-2012-3955
- cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.0:b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.0:a2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.0:a1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.2:b1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
- cpe:2.3:a:isc:dhcp:4.1.2:rc1:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*