{"schema_version":"1.9.0","id":"BIT-jenkins-2023-36478","published":"2024-03-06T10:55:21.994Z","modified":"2026-09-08T08:47:58.223243351Z","aliases":["CVE-2023-36478","GHSA-wgh7-54f2-x98r"],"summary":"HTTP/2 HPACK integer overflow and buffer allocation","details":"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\nexceed 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\nwill 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.","affected":[{"package":{"name":"jenkins","ecosystem":"Bitnami","purl":"pkg:bitnami/jenkins"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.428.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/jenkins/BIT-jenkins-2023-36478.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2023/10/18/4"},{"type":"FIX","url":"https://github.com/eclipse/jetty.project/pull/9634"},{"type":"ARTICLE","url":"https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16"},{"type":"ARTICLE","url":"https://github.com/eclipse/jetty.project/releases/tag/jetty-11.0.16"},{"type":"ARTICLE","url":"https://github.com/eclipse/jetty.project/releases/tag/jetty-9.4.53.v20231009"},{"type":"ADVISORY","url":"https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r"},{"type":"DISCUSSION","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00045.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20231116-0011/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5540"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240621-0006/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36478"}],"database_specific":{"cpes":["cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*","cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*"],"severity":"High"}}