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ubuntucveUbuntu.comUB:CVE-2021-30639
HistoryJul 12, 2021 - 12:00 a.m.

CVE-2021-30639

2021-07-1200:00:00
ubuntu.com
ubuntu.com
21

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

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

0.013 Low

EPSS

Percentile

85.8%

JSON

A vulnerability in Apache Tomcat allows an attacker to remotely trigger a
denial of service. An error introduced as part of a change to improve error
handling during non-blocking I/O meant that the error flag associated with
the Request object was not reset between requests. This meant that once a
non-blocking I/O error occurred, all future requests handled by that
request object would fail. Users were able to trigger non-blocking I/O
errors, e.g. by dropping a connection, thereby creating the possibility of
triggering a DoS. Applications that do not use non-blocking I/O are not
exposed to this vulnerability. This issue affects Apache Tomcat 10.0.3 to
10.0.4; 9.0.44; 8.5.64.

Related

f5 1
nessus 3
ibm 4
osv 2
github 1
redhatcve 1
tomcat 3
kaspersky 1
prion 1
cve 1
debiancve 1
freebsd 1
photon 2
gentoo 1
oracle 2
f5
f5
K87895241 : Apache Tomcat vulnerability CVE-2021-30639
2021-07-29 00:00:00
nessus
nessus
Apache Tomcat 10.0.3 < 10.0.5 vulnerability
2021-07-12 00:00:00
FreeBSD : tomcat -- Remote Denial of Service in multiple versions (cc7c85d9-f30a-11eb-b12b-fc4dd43e2b6a)
2021-08-04 00:00:00
GLSA-202208-34 : Apache Tomcat: Multiple Vulnerabilities
2022-08-25 00:00:00
ibm
ibm
Security Bulletin: IBM UrbanCode Release is affected by CVE-2021-30639
2022-01-25 07:43:37
Security Bulletin: App Connect Professional is affected by Apache Tomcat vulnerabilities.
2021-09-21 07:57:54
Security Bulletin: IBM UrbanCode Build is affected by CVE-2021-30639
2022-02-08 15:40:56
osv
osv
Improper Handling of Exceptional Conditions in Apache Tomcat
2021-08-13 15:21:02
BIT-tomcat-2021-30639
2024-03-06 11:10:12
github
github
Improper Handling of Exceptional Conditions in Apache Tomcat
2021-08-13 15:21:02
redhatcve
redhatcve
CVE-2021-30639
2021-07-12 19:46:17
tomcat
tomcat
Fixed in Apache Tomcat 9.0.45
2021-04-06 00:00:00
Fixed in Apache Tomcat 8.5.65
2021-04-06 00:00:00
Fixed in Apache Tomcat 10.0.5
2021-04-06 00:00:00
kaspersky
kaspersky
KLA12216 DoS vulnerability in Apache Tomcat
2021-04-06 00:00:00
prion
prion
Design/Logic Flaw
2021-07-12 15:15:00
cve
cve
CVE-2021-30639
2021-07-12 15:15:00
debiancve
debiancve
CVE-2021-30639
2021-07-12 15:15:00
freebsd
freebsd
tomcat -- Remote Denial of Service in multiple versions
2021-03-24 00:00:00
photon
photon
Important Photon OS Security Update - PHSA-2021-0066
2021-07-21 00:00:00
Important Photon OS Security Update - PHSA-2021-4.0-0066
2021-07-21 00:00:00
gentoo
gentoo
Apache Tomcat: Multiple Vulnerabilities
2022-08-21 00:00:00
oracle
oracle
Oracle Critical Patch Update Advisory - October 2022
2022-10-18 00:00:00
Oracle Critical Patch Update Advisory - January 2022
2022-01-18 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

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

0.013 Low

EPSS

Percentile

85.8%

JSON
Related for UB:CVE-2021-30639
f51nessus3ibm4osv2github1redhatcve1tomcat3kaspersky1prion1cve1debiancve1freebsd1photon2gentoo1oracle2