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Home > Cybersecurity > QNAP warns users against two vulnerabilities

QNAP warns users against two vulnerabilities

QNAP shared a new advisory and announced that multiple vulnerabilities have been fixed in Apache HTTP Server 2.4.53.


Erdem Yasar Erdem Yasar
April 22, 2022
2 min read
QNAP warns users against two vulnerabilities

Taiwan-based NAS maker, QNAP asked users to apply mitigations to prevent attempts to exploit Apache HTTP Server security vulnerabilities. Two vulnerabilities, tracked as CVE-2022-22721 and CVE-2022-23943, have a CVSS score of 9.8 and impacts systems running Apache HTTPS Server or earlier.

Fixed in Apache HTTP Server 2.4.53

The Apache Software Foundation and the Apache HTTP Server Project announced multiple vulnerabilities that have been fixed in their latest release of Apache HTTP Server 2.4.53:

  • CVE-2022-22719: moderate: mod_lua: Use of uninitialized value of in r:parsebody
  • CVE-2022-22720: important: HTTP request smuggling vulnerability in Apache HTTP Server 2.4.52 and earlier
  • CVE-2022-22721: low: core: Possible buffer overflow with very large or unlimited LimitXMLRequestBody
  • CVE-2022-23943: important: mod_sed: Read/write beyond bounds

While CVE-2022-22719 and CVE-2022-22720 do not affect QNAP products, CVE-2022-22721 affects 32-bit QNAP NAS models, and CVE-2022-23943 affects users who have enabled mod_sed in Apache HTTP Server on their QNAP device. QNAP also stated that they are investigating the vulnerabilities that affect QNAP products and will release the security updates. For the mitigations:

  • To mitigate CVE-2022-22721, we recommend keeping the default value “1M” for LimitXMLRequestBody.
  • To mitigate CVE-2022-23943, disable mod_sed. (Note: In QTS, mod_sed is disabled by default in Apache HTTP Server.)

See more Cybersecurity News


Tags: Apache Software FoundationQNAP
Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7 News. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7 News, Erdem was the managing editor of T3 Magazine.

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