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ubuntuUbuntuUSN-4969-2
HistoryMay 27, 2021 - 12:00 a.m.

DHCP vulnerability

2021-05-2700:00:00
ubuntu.com
93

7.4 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

67.8%

JSON

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • isc-dhcp - DHCP server and client

Details

USN-4969-1 fixed a vulnerability in DHCP. This update provides
the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.

Original advisory details:

Jon Franklin and Pawel Wieczorkiewicz discovered that DHCP incorrectly
handled lease file parsing. A remote attacker could possibly use this issue
to cause DHCP to crash, resulting in a denial of service.

Related

suse 2
nessus 60
prion 1
cve 1
redhat 15
osv 5
mageia 1
openvas 25
almalinux 1
ibm 3
oraclelinux 3
redhatcve 1
amazon 2
rocky 1
veracode 1
slackware 1
cbl_mariner 2
f5 1
debiancve 1
archlinux 2
fedora 2
photon 5
debian 1
freebsd 1
alpinelinux 1
cloudfoundry 1
ubuntu 1
ubuntucve 1
cloudlinux 1
centos 1
gentoo 1
ics 1
suse
suse
Security update for dhcp (important)
2021-07-11 00:00:00
Security update for dhcp (important)
2021-06-04 00:00:00
nessus
nessus
F5 Networks BIG-IP : DHCP vulnerability (K08832573)
2022-05-20 00:00:00
FreeBSD : isc-dhcp -- remotely exploitable vulnerability (e24fb8f8-c39a-11eb-9370-b42e99a1b9c3)
2021-06-03 00:00:00
CBL Mariner 2.0 Security Update: dhcp (CVE-2021-25217)
2023-03-20 00:00:00
prion
prion
Input validation
2021-05-26 22:15:00
cve
cve
CVE-2021-25217
2021-05-26 22:15:00
redhat
redhat
(RHSA-2021:2418) Important: dhcp security update
2021-06-14 18:58:51
(RHSA-2021:2415) Important: dhcp security update
2021-06-14 18:56:36
(RHSA-2021:2405) Important: dhcp security update
2021-06-14 13:09:38
osv
osv
CVE-2021-25217
2021-05-26 22:15:07
isc-dhcp vulnerability
2021-05-27 10:41:47
isc-dhcp vulnerability
2021-05-27 12:07:22
mageia
mageia
Updated dhcp packages fix a security vulnerability
2021-07-01 02:58:41
openvas
openvas
Mageia: Security Advisory (MGASA-2021-0307)
2022-01-28 00:00:00
CentOS: Security Advisory for dhclient (CESA-2021:2357)
2021-06-15 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:1822-1)
2021-06-09 00:00:00
almalinux
almalinux
Important: dhcp security update
2021-06-09 09:19:12
ibm
ibm
Security Bulletin: TS4500 is affected by CVE-2021-25217
2021-10-13 01:39:17
Security Bulletin: ISC DHCP for IBM i is affected by CVE-2021-25217
2021-09-17 21:17:32
Security Bulletin: Multiple security vulnerabilities affect IBM Cloud Foundry Migration Runtime
2021-10-13 14:44:47
oraclelinux
oraclelinux
dhcp security update
2021-06-10 00:00:00
dhcp security update
2021-06-17 00:00:00
dhcp security update
2021-06-10 00:00:00
redhatcve
redhatcve
CVE-2021-25217
2021-05-27 07:15:48
amazon
amazon
Important: dhcp
2021-06-16 20:37:00
Important: dhcp
2021-07-08 18:38:00
rocky
rocky
dhcp security update
2021-06-09 09:19:12
veracode
veracode
Denial Of Service (DoS)
2021-06-11 10:50:00
slackware
slackware
[slackware-security] dhcp
2021-05-29 17:45:10
cbl_mariner
cbl_mariner
CVE-2021-25217 affecting package dhcp 4.4.2-3
2021-06-09 03:50:39
CVE-2021-25217 affecting package dhcp 4.4.2-6
2022-04-09 06:51:48
f5
f5
K08832573 : DHCP vulnerability CVE-2021-25217
2022-05-20 00:00:00
debiancve
debiancve
CVE-2021-25217
2021-05-26 22:15:00
archlinux
archlinux
[ASA-202106-11] dhcp: arbitrary code execution
2021-06-01 00:00:00
[ASA-202106-10] dhclient: arbitrary code execution
2021-06-01 00:00:00
fedora
fedora
[SECURITY] Fedora 33 Update: dhcp-4.4.2-9.b1.fc33
2021-06-05 01:14:52
[SECURITY] Fedora 34 Update: dhcp-4.4.2-11.b1.fc34
2021-06-02 00:57:52
photon
photon
Moderate Photon OS Security Update - PHSA-2021-0034
2021-05-27 00:00:00
Home Download Photon OS User Documentation FAQ Security Advisories Related Information Lightwave - PHSA-2021-1.0-0394
2021-05-27 00:00:00
Important Photon OS Security Update - PHSA-2021-4.0-0034
2021-05-27 00:00:00
debian
debian
[SECURITY] [DLA 2674-1] isc-dhcp security update
2021-06-03 11:42:33
freebsd
freebsd
isc-dhcp -- remotely exploitable vulnerability
2021-05-26 00:00:00
alpinelinux
alpinelinux
CVE-2021-25217
2021-05-26 22:15:00
cloudfoundry
cloudfoundry
USN-4969-1: DHCP vulnerability | Cloud Foundry
2021-06-11 00:00:00
ubuntu
ubuntu
DHCP vulnerability
2021-05-27 00:00:00
ubuntucve
ubuntucve
CVE-2021-25217
2021-05-26 00:00:00
cloudlinux
cloudlinux
Fix of CVE: CVE-2021-25217
2021-06-07 14:19:01
centos
centos
dhclient, dhcp security update
2021-06-14 18:46:22
gentoo
gentoo
ISC DHCP: Multiple Vulnerabilities
2023-05-03 00:00:00
ics
ics
Siemens SINEC INS
2022-09-15 12:00:00

7.4 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

67.8%

JSON
Related for USN-4969-2
suse2nessus60prion1cve1redhat15osv5mageia1openvas25almalinux1ibm3oraclelinux3redhatcve1amazon2rocky1veracode1slackware1cbl_mariner2f51debiancve1archlinux2fedora2photon5debian1freebsd1alpinelinux1cloudfoundry1ubuntu1ubuntucve1cloudlinux1centos1gentoo1ics1