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cve[email protected]CVE-2021-33503
HistoryJun 29, 2021 - 11:15 a.m.

CVE-2021-33503

2021-06-2911:15:00
CWE-400
[email protected]
web.nvd.nist.gov
288
10
cve-2021-33503
urllib3
denial of service
nvd
security issue

7.5 High

CVSS3

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

7.3 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

68.8%

JSON

An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.

Social References

More

Related

nessus 26
prion 1
photon 6
redos 1
redhatcve 1
cbl_mariner 2
ibm 19
osv 8
redhat 5
amazon 1
archlinux 1
suse 1
fedora 3
ubuntucve 1
veracode 1
f5 1
ubuntu 1
github 1
debiancve 1
gentoo 1
mageia 2
almalinux 2
oraclelinux 2
rocky 2
oracle 1
nessus
nessus
SUSE SLED15 / SLES15 Security Update : python-urllib3 (SUSE-SU-2021:2012-1)
2021-06-21 00:00:00
Photon OS 3.0: Python PHSA-2021-3.0-0266
2021-07-22 00:00:00
Ubuntu 20.04 LTS : urllib3 vulnerability (USN-5812-1)
2023-01-19 00:00:00
prion
prion
Open redirect
2021-06-29 11:15:00
photon
photon
Important Photon OS Security Update - PHSA-2021-0266
2021-07-12 00:00:00
Important Photon OS Security Update - PHSA-2021-3.0-0266
2021-07-13 00:00:00
Critical Photon OS Security Update - PHSA-2021-0060
2021-07-13 00:00:00
redos
redos
ROS-20220125-01
2022-01-25 00:00:00
redhatcve
redhatcve
CVE-2021-33503
2021-06-06 01:54:37
cbl_mariner
cbl_mariner
CVE-2021-33503 affecting package python-urllib3 1.25.9-2
2021-08-11 06:39:25
CVE-2021-33503 affecting package python-urllib3 1.25.9-3
2022-04-09 06:51:50
ibm
ibm
Security Bulletin: Vulnerability in Urllib3 affects IBM Spectrum Protect Plus Microsoft File Systems Backup and Restore (CVE-2021-33503)
2021-09-01 09:12:49
Security Bulletin: Watson CP4D Data Stores is vulnerable to urllib3 denial of service vulnerability ( CVE-2021-33503)
2023-07-05 21:05:31
Security Bulletin: Vulnerability in urllib3 affects IBM Cloud Pak for Data System 2.0 (CPDS 2.0)[CVE-2021-33503]
2024-03-11 13:08:06
osv
osv
CVE-2021-33503
2021-06-29 11:15:07
PYSEC-2021-108
2021-06-29 11:15:00
Catastrophic backtracking in URL authority parser when passed URL containing many @ characters
2021-06-01 21:19:32
redhat
redhat
(RHSA-2021:3473) Moderate: Red Hat Automation Platform 1.2.5 security and bugfixes update
2021-09-08 19:16:20
(RHSA-2021:4160) Moderate: python39:3.9 and python39-devel:3.9 security update
2021-11-09 08:26:25
(RHSA-2021:4162) Moderate: python38:3.8 and python38-devel:3.8 security update
2021-11-09 12:47:54
amazon
amazon
Medium: python-urllib3
2021-07-14 20:40:00
archlinux
archlinux
[ASA-202106-25] python-urllib3: denial of service
2021-06-09 00:00:00
suse
suse
Security update for python-urllib3 (important)
2021-07-10 00:00:00
fedora
fedora
[SECURITY] Fedora 33 Update: python-urllib3-1.25.8-5.fc33
2021-07-08 01:08:49
[SECURITY] Fedora 34 Update: mingw-python-urllib3-1.25.10-3.fc34
2021-06-19 01:09:27
[SECURITY] Fedora 34 Update: python-urllib3-1.25.10-5.fc34
2021-07-04 01:10:06
ubuntucve
ubuntucve
CVE-2021-33503
2021-06-29 00:00:00
veracode
veracode
Denial Of Service (DoS)
2021-06-02 08:30:01
f5
f5
K23456112 : Python urllib3 vulnerability CVE-2021-33503
2021-11-26 00:00:00
ubuntu
ubuntu
urllib3 vulnerability
2023-01-19 00:00:00
github
github
Catastrophic backtracking in URL authority parser when passed URL containing many @ characters
2021-06-01 21:19:32
debiancve
debiancve
CVE-2021-33503
2021-06-29 11:15:00
gentoo
gentoo
urllib3: Multiple vulnerabilities
2021-07-15 00:00:00
mageia
mageia
Updated python-urllib3 package fixes security vulnerabilities
2021-07-27 23:21:53
Updated python-pip packages fix security vulnerabilities
2021-07-25 17:45:06
almalinux
almalinux
Moderate: python39:3.9 and python39-devel:3.9 security update
2021-11-09 08:26:25
Moderate: python38:3.8 and python38-devel:3.8 security update
2021-11-09 12:47:54
oraclelinux
oraclelinux
python39:3.9 and python39-devel:3.9 security update
2021-11-16 00:00:00
python38:3.8 and python38-devel:3.8 security update
2021-11-16 00:00:00
rocky
rocky
python39:3.9 and python39-devel:3.9 security update
2021-11-09 08:26:25
python38:3.8 and python38-devel:3.8 security update
2021-11-09 12:47:54
oracle
oracle
Oracle Critical Patch Update Advisory - October 2021
2021-10-19 00:00:00

7.5 High

CVSS3

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

7.3 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.003 Low

EPSS

Percentile

68.8%

JSON
Related for CVE-2021-33503
nessus26prion1photon6redos1redhatcve1cbl_mariner2ibm19osv8redhat5amazon1archlinux1suse1fedora3ubuntucve1veracode1f51ubuntu1github1debiancve1gentoo1mageia2almalinux2oraclelinux2rocky2oracle1