CVE-2015-4047

Exp

racoon/gssapi.c in IPsec-Tools 0.8.2 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon crash) via a series of crafted UDP requests.

Published: 2015-05-29 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4047 is rated High Exploit Risk (75.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.67%). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-4047

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-4047

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-18 3.59% 2.67% -0.91%
2 2025-05-20 6.35% 3.59% -2.76%
3 2025-03-30 — 6.35% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4047

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2015-4047

OS Trackers for CVE-2015-4047

vendor priority summary link
alpine — CVE-2015-4047: 1 source package rows (ipsec-tools); 2 state rows across 2 repos (3.11-main, 3.12-main); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2015-4047
redhat medium — https://access.redhat.com/security/cve/CVE-2015-4047
suse medium — https://www.suse.com/security/cve/CVE-2015-4047/
ubuntu medium CVE-2015-4047 medium priority: Ubuntu including 1 source packages (ipsec-tools), 7 status rows across 7 suites (precise, trusty, upstream, utopic, vivid, wily, xenial): released 3, ignored 2, not-affected 2. https://ubuntu.com/security/CVE-2015-4047

Affected software / configurations for CVE-2015-4047

Vendor Product Version Raw CPE
ipsec-tools ipsec-tools 0.8.2 cpe:2.3:a:ipsec-tools:ipsec-tools:0.8.2:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
fedoraproject fedora 20 cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
fedoraproject fedora 21 cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 11.4.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager 13.0.0 cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 13.0.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 11.3.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager 13.0.0 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_analytics >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics 13.0.0 cpe:2.3:a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.0.0 cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 13.0.0 cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system 13.0.0 cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 11.0.0, <= 11.3.0 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 11.0.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller 13.0.0 cpe:2.3:a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 11.3.0, <= 11.6.4 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager >= 12.0.0, <= 12.1.4 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
f5 big-ip_policy_enforcement_manager 13.0.0 cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:*
f5 big-ip_protocol_security_manager >= 11.0.0, <= 11.4.1 cpe:2.3:a:f5:big-ip_protocol_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_wan_optimization_manager >= 11.0.0, <= 11.3.0 cpe:2.3:a:f5:big-ip_wan_optimization_manager:*:*:*:*:*:*:*:*
f5 big-ip_webaccelerator >= 11.0.0, <= 11.3.0 cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
f5 big-iq_adc 4.5.0 cpe:2.3:a:f5:big-iq_adc:4.5.0:*:*:*:*:*:*:*
f5 big-iq_centralized_management 4.6.0 cpe:2.3:a:f5:big-iq_centralized_management:4.6.0:*:*:*:*:*:*:*
f5 big-iq_cloud >= 4.0.0, <= 4.5.0 cpe:2.3:a:f5:big-iq_cloud:*:*:*:*:*:*:*:*
f5 big-iq_cloud_and_orchestration 1.0.0 cpe:2.3:a:f5:big-iq_cloud_and_orchestration:1.0.0:*:*:*:*:*:*:*
f5 big-iq_device >= 4.2.0, <= 4.5.0 cpe:2.3:a:f5:big-iq_device:*:*:*:*:*:*:*:*
f5 big-iq_security >= 4.0.0, <= 4.5.0 cpe:2.3:a:f5:big-iq_security:*:*:*:*:*:*:*:*
f5 enterprise_manager >= 3.0.0, <= 3.1.1 cpe:2.3:a:f5:enterprise_manager:*:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2015-4047

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159482.html Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/159549.html Mailing List Third Party Advisory
http://packetstormsecurity.com/files/131992/IPsec-Tools-0.8.2-Denial-Of-Service.html Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2015/May/81 Exploit Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2015/May/83 Exploit Mailing List Third Party Advisory
http://www.debian.org/security/2015/dsa-3272 Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/05/20/1 Exploit Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/05/21/11 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/74739 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1032397 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2623-1 Third Party Advisory
https://support.f5.com/csp/article/K05013313 Third Party Advisory
https://www.altsci.com/ipsec/ipsec-tools-sa.html Exploit Third Party Advisory
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