PT-2015-7641 · Cisco+3 · Cisco Nexus+4

Martin Prpič · Published 2015-10-21 · Updated 2024-06-15 · CVE-2015-7849

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions NTP versions 4.2.x through 4.2.8p3 NTP versions 4.3.x through 4.3.76 Cisco Nexus (affected versions not specified)

Description The issue is related to a use-after-free vulnerability in ntpd. This vulnerability allows remote authenticated users to possibly execute arbitrary code or cause a denial of service via crafted packets.

Recommendations For NTP versions 4.2.x through 4.2.8p3, update to version 4.2.8p4 or later. For NTP versions 4.3.x through 4.3.76, update to version 4.3.77 or later. For Cisco Nexus, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2017-2335

CVE-2015-7849

OPENSUSE-SU-2024:10181-1

SUSE-SU-2015:2058-1

SUSE-SU-2016:1247-1

SUSE-SU-2016:1311-1

Affected Products

Alt Linux

Cisco Ios Xe

Cisco Nexus

Ntp

Suse

References · 183

• 🔥 https://github.com/opsxcq/exploit-CVE-2016-7434 · Exploit
• https://bdu.fstec.ru/vul/2017-02017 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2516 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9310 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:1311-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2517 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4954 · Security Note
• http://support.ntp.org/bin/view/Main/NtpBug2916 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4953 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7703 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7702 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02039 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6459 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2015-7849 · Security Note