CVE-2020-27223
CVE-2020-27223
In short
Eclipse Jetty servers can be made to consume excessive CPU time when processing HTTP requests with multiple Accept headers containing many quality parameters. This allows attackers to cause a denial of service by exhausting server resources.
Technical detail
CWE-407 (Inefficient Algorithmic Complexity) in Jetty versions 9.4.6 through 9.4.36, 10.0.0, and 11.0.0 allows remote attackers to trigger algorithmic complexity exploitation via crafted HTTP requests with multiple Accept headers containing numerous quality (q) parameters, resulting in prolonged CPU consumption and service unavailability.
Summary generated and translated by AI from the official 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.
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Affected products
The Eclipse Foundation · Eclipse JettyWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://bugs.eclipse.org/bugs/show_bug.cgi?id=571128https://github.com/eclipse/jetty.project/security/advisories/GHSA-m394-8rww-3jr7https://github.com/jetty/jetty.project/commit/10e531756b972162eed402c44d0244f7f6b85131https://lists.apache.org/thread.html/r068dfd35ce2193f6af28b74ff29ab148c2b2cacb235995576f5bea78%40%3Cissues.solr.apache.org%3Ehttps://lists.apache.org/thread.html/r07aedcb1ece62969c406cb84c8f0e22cec7e42cdc272f3176e473320%40%3Cusers.solr.apache.org%3Ehttps://lists.apache.org/thread.html/r0b639bd9bfaea265022125d18acd2fc6456044b76609ec74772c9567%40%3Cissues.zookeeper.apache.org%3Ehttps://lists.apache.org/thread.html/r0c6eced465950743f3041b03767a32b2e98d19731bd72277fc7ea428%40%3Ccommits.zookeeper.apache.org%3Ehttps://lists.apache.org/thread.html/r0cdab13815fc419805a332278c8d27e354e78560944fc36db0bdc760%40%3Cnotifications.zookeeper.apache.org%3Ehttps://lists.apache.org/thread.html/r0e25cdf3722a24c53049d37396f0da8502cb4b7cdc481650dc601dbc%40%3Cgitbox.activemq.apache.org%3Ehttps://lists.apache.org/thread.html/r105f4e52feb051faeb9141ef78f909aaf5129d6ed1fc52e099c79463%40%3Cissues.spark.apache.org%3Ehttps://lists.apache.org/thread.html/r1414ab2b3f4bb4c0e736caff6dc8d15f93f6264f0cca5c47710d7bb3%40%3Creviews.spark.apache.org%3Ehttps://lists.apache.org/thread.html/r1b7ed296a865e3f1337a96ee9cd51f6d154d881a30da36020ca72a4b%40%3Cjira.kafka.apache.org%3E