| Name | CVE-2020-27223 |
| Description | In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jetty9 (PTS) | stretch | 9.2.21-1+deb9u1 | fixed |
| stretch (security) | 9.2.30-0+deb9u2 | fixed | |
| buster | 9.4.15-1 | vulnerable | |
| bullseye, sid | 9.4.39-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| jetty9 | source | stretch | (not affected) | |||
| jetty9 | source | (unstable) | 9.4.38-1 |
[stretch] - jetty9 <not-affected> (Vulnerable code introduced later)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=571128
https://github.com/eclipse/jetty.project/security/advisories/GHSA-m394-8rww-3jr7
https://github.com/eclipse/jetty.project/issues/5963
https://github.com/eclipse/jetty.project/commit/10e531756b972162eed402c44d0244f7f6b85131
Introduced by https://github.com/eclipse/jetty.project/commit/cb84946467dc55826a8021ea2592ba58252863c9 (jetty-9.4.6.v20170531)