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redhatcveRedhat.comRH:CVE-2021-28651
HistoryMay 19, 2021 - 3:54 p.m.

CVE-2021-28651

2021-05-1915:54:39
redhat.com
access.redhat.com
71
squid
input validation
memory consumption
system availability
cve-2021-28651
urn processing

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.015

Percentile

87.2%

JSON

An input validation flaw was found in Squid. This issue could allow a malicious server in collaboration with a trusted client to consume arbitrarily large amounts of memory on the server running Squid. The highest threat from this vulnerability is to system availability.

Mitigation

If possible, disable URN processing by adding the following lines in squid.conf:

acl URN proto URN  
http_access deny URN

Related

cloudlinux 3
nvd 1
alpinelinux 1
cvelist 1
ubuntucve 1
prion 1
cve 1
debiancve 1
veracode 1
osv 8
openvas 18
nessus 28
archlinux 1
redos 18
suse 2
debian 2
oraclelinux 2
ubuntu 2
amazon 2
rocky 1
almalinux 1
photon 4
redhat 1
fedora 2
mageia 1
gentoo 1
cloudlinux
cloudlinux
Fix of CVE: CVE-2021-28651
2022-04-21 21:19:16
Fix of CVE: CVE-2021-28651
2021-07-20 09:58:36
Fix of CVE: CVE-2020-8517, CVE-2021-28651, CVE-2020-15049, CVE-2020-8449, CVE-2020-8450, CVE-2020-24606, CVE-2020-25097, CVE-2020-11945, CVE-2020-14058
2021-09-21 22:10:21
nvd
nvd
CVE-2021-28651
2021-05-27 12:15:08
alpinelinux
alpinelinux
CVE-2021-28651
2021-05-27 12:15:08
cvelist
cvelist
CVE-2021-28651
2021-05-27 00:00:00
ubuntucve
ubuntucve
CVE-2021-28651
2021-05-27 00:00:00
prion
prion
Design/Logic Flaw
2021-05-27 12:15:00
cve
cve
CVE-2021-28651
2021-05-27 12:15:08
debiancve
debiancve
CVE-2021-28651
2021-05-27 12:15:08
veracode
veracode
Denial Of Service (DoS)
2021-05-15 00:52:17
osv
osv
CVE-2021-28651
2021-05-27 12:15:08
squid3 - security update
2021-06-14 00:00:00
squid3 vulnerabilities
2024-06-27 10:48:19
openvas
openvas
Squid 2.0 < 4.14, 5.0.1 < 5.0.5 DoS Vulnerability (GHSA-ch36-9jhx-phm4, SQUID-2021:1)
2021-05-28 00:00:00
SUSE: Security Advisory (SUSE-SU-2022:14914-1)
2022-03-16 00:00:00
SUSE: Security Advisory (SUSE-SU-2022:2392-1)
2022-07-14 00:00:00
nessus
nessus
SUSE SLES11 Security Update : squid3 (SUSE-SU-2022:14914-1)
2022-03-17 00:00:00
SUSE SLES12 Security Update : squid (SUSE-SU-2022:2392-1)
2022-07-14 00:00:00
openSUSE 15 Security Update : squid (openSUSE-SU-2021:0879-1)
2021-06-28 00:00:00
archlinux
archlinux
[ASA-202105-10] squid: denial of service
2021-05-19 00:00:00
redos
redos
ROS-2-997
2021-09-08 00:00:00
ROS-2-874
2021-12-24 00:00:00
ROS-2-661
2021-09-08 00:00:00
suse
suse
Security update for squid (important)
2021-06-16 00:00:00
Security update for squid (important)
2021-07-11 00:00:00
debian
debian
[SECURITY] [DSA 4924-1] squid security update
2021-06-01 19:38:13
[SECURITY] [DLA 2685-1] squid3 security update
2021-06-14 06:36:59
oraclelinux
oraclelinux
squid security update
2021-09-24 00:00:00
squid:4 security, bug fix, and enhancement update
2021-11-16 00:00:00
ubuntu
ubuntu
Squid vulnerabilities
2024-06-27 00:00:00
Squid vulnerabilities
2021-06-03 00:00:00
amazon
amazon
Medium: squid
2023-02-17 00:11:00
Medium: squid
2023-02-17 00:02:00
rocky
rocky
squid:4 security, bug fix, and enhancement update
2021-11-09 08:56:14
almalinux
almalinux
Moderate: squid:4 security, bug fix, and enhancement update
2021-11-09 08:56:14
photon
photon
Important Photon OS Security Update - PHSA-2021-0269
2021-07-20 00:00:00
Important Photon OS Security Update - PHSA-2021-0063
2021-07-19 00:00:00
Important Photon OS Security Update - PHSA-2021-4.0-0063
2021-07-20 00:00:00
redhat
redhat
(RHSA-2021:4292) Moderate: squid:4 security, bug fix, and enhancement update
2021-11-09 08:56:14
fedora
fedora
[SECURITY] Fedora 34 Update: squid-5.0.6-1.fc34
2021-06-11 01:16:02
[SECURITY] Fedora 33 Update: squid-4.15-1.fc33
2021-06-11 01:20:16
mageia
mageia
Updated squid packages fix security vulnerabilities
2021-06-08 19:46:03
gentoo
gentoo
Squid: Multiple vulnerabilities
2021-05-26 00:00:00

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.015

Percentile

87.2%

JSON
Related for RH:CVE-2021-28651
cloudlinux3nvd1alpinelinux1cvelist1ubuntucve1prion1cve1debiancve1veracode1osv8openvas18nessus28archlinux1redos18suse2debian2oraclelinux2ubuntu2amazon2rocky1almalinux1photon4redhat1fedora2mageia1gentoo1