Resource exhaustion in Red Hat Jboss Fuse
CVE-2020-27782
A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (72.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Red Hat Jboss Fuse — versions 6.0.0, 7.0.0
- Red Hat Openshift Application Runtimes
- Red Hat Undertow — versions 2.0.33, 2.1.5, 2.2.3
- Undertow — versions 2.1.5.SP1, 2.0.33.SP2, 2.2.3.SP1
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-27782?
- CVE-2020-27782 is a high-severity vulnerability in Red Hat Jboss Fuse, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-02-23.
- How severe is CVE-2020-27782?
- High severity. CVSS v3 base score is 7.5 out of 10.