Impact of CVE-2023-31122, CVE-2023-43622 and CVE-2023-45802 Vulnerabilities on Veritas Desktop and Laptop Option (DLO)

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Article ID: 100061047

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Updated On:

Description

Error Message

N/A

 

Cause

CVE-2023-31122
Out-of-bounds Read vulnerability in mod_macro of Apache HTTP Server.This issue affects Apache HTTP Server: through 2.4.57.

https://nvd.nist.gov/vuln/detail/CVE-2023-31122


CVE-2023-43622
An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known "slow loris" attack pattern. This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout. This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57. Users are recommended to upgrade to version 2.4.58, which fixes the issue.

https://nvd.nist.gov/vuln/detail/CVE-2023-43622


CVE-2023-45802
When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58, which fixes the issue.

https://nvd.nist.gov/vuln/detail/CVE-2023-45802

 

Resolution

All current versions of DLO (up to 9.8.2) do not use HTTP/2, only HTTP/1.1 and are not impacted by these vulnerabilities.

 

Customers are advised to regularly check the Veritas Update feature of DLO 9.7 and later, for any newer Component upgrades of Apache Tomcat  and HTTP Server. Newer components will be made available to be installed once qualified in the respective DLO versions.
See the following article for more details of current versions used and supported;
Apache, Tomcat, OpenSSL and Log4j versions used in Desktop and Laptop Option

 

Issue/Introduction

New vulnerabilities CVE-2023-31122, CVE-2023-43622 and CVE-2023-45802 have been reported in the Apache HTTP Server component. This component is being used by the Backup Over Internet (BOI) and Web Restore features of Desktop and Laptop Option (DLO).