Vulnerability Monitor

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CVE-2015-8605

ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial of service (application crash) via an invalid length field in a UDP IPv4 packet.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 4 products from sophos, from isc, from debian and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-01-14T22:59:00.077

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 6.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

5.5

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	sophos	unified_threat_management_up2date	≤ 9.318	Yes
Application	sophos	unified_threat_management_up2date	≤ 9.353	Yes
Application	isc	dhcp	4.0.0	Yes
Application	isc	dhcp	4.0.1	Yes
Application	isc	dhcp	4.0.2	Yes
Application	isc	dhcp	4.0.2	Yes
Application	isc	dhcp	4.0.3	Yes
Application	isc	dhcp	4.0.3	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1-esv	Yes
Application	isc	dhcp	4.1.0	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.1	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.1.2	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.0	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.1	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.2	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.3	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.4	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.5	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.6	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.7	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.2.8	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.0	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.1	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.2	Yes
Application	isc	dhcp	4.3.3	Yes
Application	isc	dhcp	4.3.3	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	15.04	Yes
Operating System	canonical	ubuntu_linux	15.10	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175594.html Mailing List, Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176031.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2016-02/msg00162.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2016-02/msg00168.html Mailing List, Third Party Advisory ([email protected])
http://www.debian.org/security/2016/dsa-3442 Third Party Advisory ([email protected])
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/80703 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1034657 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/USN-2868-1 Third Party Advisory ([email protected])
https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/ Third Party Advisory ([email protected])
https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/ Third Party Advisory ([email protected])
https://kb.isc.org/article/AA-01334 Vendor Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175594.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176031.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2016-02/msg00162.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2016-02/msg00168.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2016/dsa-3442 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/80703 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1034657 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2868-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://kb.isc.org/article/AA-01334 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sophos's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.