Integer Overflow or Wraparound Affecting jetty9 package, versions <9.4.50-4+deb11u1
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Test your applications- Snyk ID SNYK-DEBIAN11-JETTY9-5959048
- published 11 Oct 2023
- disclosed 10 Oct 2023
How to fix?
Upgrade Debian:11 jetty9 to version 9.4.50-4+deb11u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream jetty9 package and not the jetty9 package as distributed by Debian.
See How to fix? for Debian:11 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.
References
- https://security-tracker.debian.org/tracker/CVE-2023-36478
- https://github.com/eclipse/jetty.project/pull/9634
- https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16
- https://github.com/eclipse/jetty.project/releases/tag/jetty-11.0.16
- https://github.com/eclipse/jetty.project/releases/tag/jetty-9.4.53.v20231009
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r
- http://www.openwall.com/lists/oss-security/2023/10/18/4
- https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html
- https://www.debian.org/security/2023/dsa-5540
- https://security.netapp.com/advisory/ntap-20231116-0011/
- https://security.netapp.com/advisory/ntap-20240621-0006/