Resource Exhaustion Affecting puppetserver package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.15% (78th percentile)

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  • Snyk IDSNYK-RHEL10-PUPPETSERVER-9893348
  • published29 Apr 2025
  • disclosed10 Oct 2023

Introduced: 10 Oct 2023

CVE-2023-36478  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 puppetserver.

NVD Description

Note: Versions mentioned in the description apply only to the upstream puppetserver package and not the puppetserver package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in MetaDataBuilder.checkSize allows for HTTP/2 HPACK header values to exceed their size limit. MetaDataBuilder.java determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded. However, when length is very large and huffman is true, the multiplication by 4 in line 295 will overflow, and length will become negative. (_size+length) will now be negative, and the check on line 296 will not be triggered. Furthermore, MetaDataBuilder.checkSize allows for user-entered HPACK header value sizes to be negative, potentially leading to a very large buffer allocation later on when the user-entered size is multiplied by 2. This means that if a user provides a negative length value (or, more precisely, a length value which, when multiplied by the 4/3 fudge factor, is negative), and this length value is a very large positive number when multiplied by 2, then the user can cause a very large buffer to be allocated on the server. Users of HTTP/2 can be impacted by a remote denial of service attack. The issue has been fixed in versions 11.0.16, 10.0.16, and 9.4.53. There are no known workarounds.

CVSS Base Scores

version 3.1