Vulnerability in Apache Tomcat
CVE-2020-13935
The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a 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: 0.866 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.866 · newest: 0.866 · change: 0.000
Affected products
- Apache Tomcat — versions 9.0.0, 10.0.0
- Mcafee Epolicy Orchestrator — versions 5.9.0, 5.9.1, 5.10.0
- NetApp Oncommand System Manager
- Oracle Agile Engineering Data Management — versions 6.2.1.0
- Oracle Agile Plm — versions 9.3.3, 9.3.5, 9.3.6
- Oracle Agile Product Lifecycle Management — versions 9.3.3, 9.3.5, 9.3.6
- Oracle Blockchain Platform
- Oracle Commerce Guided Search — versions 11.3.2
- Oracle Communications Cloud Native Core Policy — versions 1.14.0
- Oracle Communications Instant Messaging Server — versions 10.0.1.5.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b8… (Mailing List, Release Notes, Vendor Advisory)
- www.debian.org/security/2020/dsa-4727 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/07/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html (vendor-advisory, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4448-1/ (vendor-advisory, Third Party Advisory)
- www.oracle.com/security-alerts/cpuoct2020.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200724-0003/ (Third Party Advisory)
- kc.mcafee.com/corporate/index (Third Party Advisory)
- usn.ubuntu.com/4596-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13935?
- CVE-2020-13935 is a high-severity vulnerability in Apache Tomcat, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2020-07-14.
- How severe is CVE-2020-13935?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-13935 known to be exploited?
- 53 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.