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HistorySep 22, 2021 - 11:10 p.m.

[SECURITY] [DLA 2764-1] tomcat8 security update

2021-09-2223:10:50
lists.debian.org
28
debian
lts
tomcat8
security update
cve-2021-41079
tls
denial of service

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/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

AI Score

7.7

Confidence

High

EPSS

0.005

Percentile

76.9%


Debian LTS Advisory DLA-2764-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
September 22, 2021 https://wiki.debian.org/LTS

Package : tomcat8
Version : 8.5.54-0+deb9u8
CVE ID : CVE-2021-41079

Apache Tomcat did not properly validate incoming TLS packets. When Tomcat
was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially
crafted packet could be used to trigger an infinite loop resulting in a
denial of service.

For Debian 9 stretch, this problem has been fixed in version
8.5.54-0+deb9u8.

We recommend that you upgrade your tomcat8 packages.

For the detailed security status of tomcat8 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/tomcat8

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: This is a digitally signed message part

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/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

AI Score

7.7

Confidence

High

EPSS

0.005

Percentile

76.9%