Amazon Linux AMI update for tomcat8



Published: 2023-10-19 | Updated: 2024-03-22
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-42795
CVE-2023-44487
CVE-2023-45648
CWE-ID CWE-399
CWE-400
CWE-444
Exploitation vector Network
Public exploit Vulnerability #2 is being exploited in the wild.
Vulnerable software
Subscribe 		Amazon Linux AMI
Operating systems & Components / Operating system

tomcat8
Operating systems & Components / Operating system package or component

Vendor Amazon Web Services

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU81800

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42795

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper management of internal resources within the application when recycling various internal objects. A remote attacker can force Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next.

Mitigation

Update the affected packages:

noarch:
    tomcat8-lib-8.5.94-1.95.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.94-1.95.amzn1.noarch
    tomcat8-admin-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-log4j-8.5.94-1.95.amzn1.noarch
    tomcat8-jsp-2.3-api-8.5.94-1.95.amzn1.noarch
    tomcat8-8.5.94-1.95.amzn1.noarch
    tomcat8-javadoc-8.5.94-1.95.amzn1.noarch
    tomcat8-docs-webapp-8.5.94-1.95.amzn1.noarch
    tomcat8-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-el-3.0-api-8.5.94-1.95.amzn1.noarch

src:
    tomcat8-8.5.94-1.95.amzn1.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat8: before 8.5.94-1.95

External links

http://alas.aws.amazon.com/ALAS-2023-1868.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU81728

Risk: High

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-44487

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Update the affected packages:

noarch:
    tomcat8-lib-8.5.94-1.95.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.94-1.95.amzn1.noarch
    tomcat8-admin-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-log4j-8.5.94-1.95.amzn1.noarch
    tomcat8-jsp-2.3-api-8.5.94-1.95.amzn1.noarch
    tomcat8-8.5.94-1.95.amzn1.noarch
    tomcat8-javadoc-8.5.94-1.95.amzn1.noarch
    tomcat8-docs-webapp-8.5.94-1.95.amzn1.noarch
    tomcat8-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-el-3.0-api-8.5.94-1.95.amzn1.noarch

src:
    tomcat8-8.5.94-1.95.amzn1.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat8: before 8.5.94-1.95

External links

http://alas.aws.amazon.com/ALAS-2023-1868.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU81799

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45648

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation when parsing HTTP trailer headers. A remote attacker can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.

Mitigation

Update the affected packages:

noarch:
    tomcat8-lib-8.5.94-1.95.amzn1.noarch
    tomcat8-servlet-3.1-api-8.5.94-1.95.amzn1.noarch
    tomcat8-admin-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-log4j-8.5.94-1.95.amzn1.noarch
    tomcat8-jsp-2.3-api-8.5.94-1.95.amzn1.noarch
    tomcat8-8.5.94-1.95.amzn1.noarch
    tomcat8-javadoc-8.5.94-1.95.amzn1.noarch
    tomcat8-docs-webapp-8.5.94-1.95.amzn1.noarch
    tomcat8-webapps-8.5.94-1.95.amzn1.noarch
    tomcat8-el-3.0-api-8.5.94-1.95.amzn1.noarch

src:
    tomcat8-8.5.94-1.95.amzn1.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat8: before 8.5.94-1.95

External links

http://alas.aws.amazon.com/ALAS-2023-1868.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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