CVE-2023-36478
published 2023-10-10CVE-2023-36478: 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…
high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
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.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| atlassian | bitbucket_data_center | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | jetty9 | < jetty9 9.4.50-4+deb12u2 (bookworm) | jetty9 9.4.50-4+deb12u2 (bookworm) |
| eclipse | jetty | >= 10.0.0 < 10.0.16 | 10.0.16 |
| eclipse | jetty | >= 11.0.0 < 11.0.16 | 11.0.16 |
| eclipse | jetty | >= 9.3.0 < 9.4.53 | 9.4.53 |
| eclipse | jetty.project | — | — |
| eclipse | jetty.project | — | — |
| eclipse | jetty.project | — | — |
| jenkins | jenkins | < 2.414.3 | 2.414.3 |
| jenkins | jenkins | < 2.428 | 2.428 |
| jenkins | jenkins_core | — | — |
| jenkins | jenkins_lts | — | — |
| jenkins | jenkins_weekly | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH