Vulnerability-Lookup

SUSE-SU-2016:1791-1

Vulnerability from csaf_suse - Published: 2016-07-13 10:26 - Updated: 2026-09-20 12:15

Summary

Security update for dhcp

Severity

Moderate

Notes

Title of the patch: Security update for dhcp

Description of the patch: This update for dhcp fixes the following issues: Security issue fixed: - CVE-2016-2774: Fixed a denial of service attack against the DHCP server over the OMAPI TCP socket, which could be used by network adjacent attackers to make the DHCP server non-functional (bsc#969820). Non security issues fixed: - Rename freeaddrinfo(), getaddrinfo() and getnameinfo() in the internal libirs library that does not consider /etc/hosts and /etc/nsswitch.conf to use irs_ prefix. This prevents name conflicts which would result in overriding standard glibc functions used by libldap. (bsc#972907)

Patchnames: SUSE-SLE-DESKTOP-12-SP1-2016-1048,SUSE-SLE-SDK-12-SP1-2016-1048,SUSE-SLE-SERVER-12-SP1-2016-1048

CVE-2016-2774

5.9 (Medium)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 23 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Desktop 12 SP1:dhcp-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Desktop 12 SP1:dhcp-client-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-client-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-client-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-client-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-relay-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-relay-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-relay-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-server-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-server-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP1:dhcp-server-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:dhcp-devel-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:dhcp-devel-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP1:dhcp-devel-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP1:dhcp-devel-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP1:dhcp-devel-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP1:dhcp-devel-0:4.3.3-9.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Software Development Kit 12 SP1:dhcp-devel-0:4.3.3-9.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Software Development Kit 12 SP1:dhcp-devel-0:4.3.3-9.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Software Development Kit 12 SP1:dhcp-devel-0:4.3.3-9.1.x86_64	—	Vendor Fix

Threats

Impact low

References

9 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/969820	self
https://bugzilla.suse.com/972907	self
https://www.suse.com/security/cve/CVE-2016-2774/	self
https://www.suse.com/security/cve/CVE-2016-2774	external
https://bugzilla.suse.com/969820	external

JSON

To clipboard

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}

CVE-2016-2774 (GCVE-0-2016-2774)

Vulnerability from cvelistv5 – Published: 2016-03-09 15:26 – Updated: 2024-08-05 23:32

Summary

ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

10 references

URL	Tags
http://rhn.redhat.com/errata/RHSA-2016-2590.html	vendor-advisoryx_refsource_REDHAT
http://www.securitytracker.com/id/1035196	vdb-entryx_refsource_SECTRACK
https://kb.isc.org/article/AA-01354	x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/3586-1/	vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securityfocus.com/bid/84208	vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

Date Public

2016-03-07 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

SUSE-SU-2016:1791-1

CVE-2016-2774 (GCVE-0-2016-2774)

Tags

Sightings

Nomenclature

Related by attack behaviour