CVE-2020-17527: Apache Tomcat: Request header mix-up between HTTP/2 streams
Apache Software Foundation · Apache Tomcat
Vendor fix available · Affected: Apache Software Foundation Apache Tomcat · Exploitation: likely to be exploited (10% or more)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 97% of scored CVEs
Not scored yet. The CVE record carries no CVSS score.
DescriptionCVE.org
While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Apache Software Foundation · Apache TomcatApache Tomcat 10 10.0.0-M1 to 10.0.0-M9; Apache Tomcat 9 9.0.0-M1 to 9.0.39; Apache Tomcat 8.5 8.5.0 to 8.5.59
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- December 2020
CoverageNo articles yet
No CyberSIXT article names CVE-2020-17527 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-200cwe.mitre.org
- Vendor advisorysecurity.gentoo.org
- Vendor advisorydebian.org
- lists.apache.org/thread.html/rce5ac9a40173651d540babce59f6f3825flists.apache.org
- oracle.com/security-alerts/cpuApr2021.htmloracle.com
- security.netapp.com/advisory/ntap-20201210-0003security.netapp.com
- oracle.com//security-alerts/cpujul2021.htmloracle.com
- oracle.com/security-alerts/cpujan2022.htmloracle.com
- oracle.com/security-alerts/cpuapr2022.htmloracle.com
- Mailing listlists.apache.org
- Mailing listlists.apache.org
- Mailing listlists.apache.org
- Mailing listlists.apache.org
12 more references are in the CVE record.