Bugzilla – Bug 1216162
VUL-0: CVE-2023-36478: jetty-minimal,jetty-websocket: HTTP/2 HPACK integer overflow and buffer allocation
Last modified: 2024-03-05 09:22:21 UTC
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: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-36478 https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r https://github.com/eclipse/jetty.project/pull/9634 https://github.com/eclipse/jetty.project/releases/tag/jetty-9.4.53.v20231009 https://github.com/eclipse/jetty.project/releases/tag/jetty-10.0.16 https://github.com/eclipse/jetty.project/releases/tag/jetty-11.0.16
SUSE-SU-2023:4210-1: An update that solves five vulnerabilities can now be installed. Category: security (important) Bug References: 1215415, 1215416, 1215417, 1216162, 1216169 CVE References: CVE-2023-36478, CVE-2023-36479, CVE-2023-40167, CVE-2023-41900, CVE-2023-44487 Sources used: SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Enterprise Storage 7.1 (src): jetty-minimal-9.4.53-150200.3.22.1 openSUSE Leap 15.4 (src): jetty-minimal-9.4.53-150200.3.22.1 openSUSE Leap 15.5 (src): jetty-minimal-9.4.53-150200.3.22.1 Development Tools Module 15-SP4 (src): jetty-minimal-9.4.53-150200.3.22.1 Development Tools Module 15-SP5 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src): jetty-minimal-9.4.53-150200.3.22.1 SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (src): jetty-minimal-9.4.53-150200.3.22.1 NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Fixed. Time to close it.