CVE-2012-3955

Home/CVE/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

CVE

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

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.

HIGH · CVSS 7.1 EPSS 0.17439

Schedule remediation

EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 5% of all CVEs by exploitation likelihood
CVSS base score ≥ 7.0

Sigma rules3 YARA rules0

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Affected Products & Versions

isc dhcpall versions
debian linuxall versions
canonical ubuntu linuxall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

producthighDHCP Server Error Failed Loading the CallOut DLL

producthighDHCP Server Loaded the CallOut DLL

producthighDHCP Callout DLL Installation

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Scoring & Timeline

7.1

HIGH · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Published to NVD14 Sep 2012 · 10:33 AM

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Vendor Advisories

suse-csafopenSUSE-SU-2024:10358-1
rhsaRHSA-2013:0579Important
usnUSN-1571-1
rhsaRHSA-2013:0504Low

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.fedoraproject.org/pipermail/package-announce/2012-October/088882.htmlThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2012-September/086992.htmlThird Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2012-September/088220.htmlThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2012-09/msg00088.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2012-09/msg00103.htmlMailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-updates/2012-09/msg00105.htmlMailing ListThird Party Advisory

Show all 16 references

http://rhn.redhat.com/errata/RHSA-2013-0504.htmlThird Party Advisory

http://secunia.com/advisories/51318Third Party Advisory

http://security.gentoo.org/glsa/glsa-201301-06.xmlThird Party Advisory

http://www.debian.org/security/2012/dsa-2551Third Party Advisory

http://www.mandriva.com/security/advisories?name=MDVSA-2012:153Third Party Advisory

http://www.securityfocus.com/bid/55530Third Party AdvisoryVDB Entry

http://www.securitytracker.com/id?1027528Third Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/USN-1571-1Third Party Advisory

https://blogs.oracle.com/sunsecurity/entry/cve_2012_3955_denial_ofThird Party Advisory

https://kb.isc.org/article/AA-00779Vendor Advisory

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