CVE-2020-27218
MEDIUMEPSS 94th pctlDescription
In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Exploit Intelligence
High risk: more likely to be exploited than 94% of all known CVEs.
References
- lists.apache.org
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- lists.apache.org
Related Vulnerabilities
Other CWE-226 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2018-7166 | High | 7.5 | 3.2% | - | Fix |
| CVE-2022-39393 | High | 8.6 | 0.7% | - | Fix |
| CVE-2024-32036 | Medium | 5.3 | 0.6% | - | Fix |
| CVE-2026-5795 | High | 7.4 | 0.5% | - | Fix |
| CVE-2019-25560 | High | 7.5 | 0.5% | - | - |
| CVE-2024-7883 | Low | 3.7 | 0.5% | - | Fix |
Common questions
How do I fix CVE-2020-27218?
Upgrade jetty9 on debian 11 to 9.4.35-1 or later.
Is CVE-2020-27218 being actively exploited?
Not that we know of. CVE-2020-27218 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 8.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 94% of all scored CVEs.
How severe is CVE-2020-27218?
CVE-2020-27218 has a CVSS v3 base score of 4.8, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2020-27218 affect?
Published advisories record a fix for jetty9 (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.