CVE-2020-13935
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-13935
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-13935.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 9.0.37-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 9.0.37-1 |
| debian | bullseye | fixed | 9.0.37-1 |
| debian | forky | fixed | 9.0.37-1 |
| debian | sid | fixed | 9.0.37-1 |
| debian | trixie | fixed | 9.0.37-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >=10.0.0-M1,<10.0.0-M7 | 10.0.0-M7 |
| Maven | org.apache.tomcat:tomcat | >=9.0.0.M1,<9.0.37 | 9.0.37 |
| Maven | org.apache.tomcat:tomcat | >=8.5.0,<8.5.57 | 8.5.57 |
| Maven | org.apache.tomcat:tomcat | >=7.0.27,<7.0.105 | 7.0.105 |
References
- https://www.suse.com/security/cve/CVE-2020-13935.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-13935
- https://github.com/apache/tomcat/commit/12d715676038efbf9c728af10163f8277fc019d5
- https://github.com/apache/tomcat/commit/1c1c77b0efb667cea80b532440b44cea1dc427c3
- https://github.com/apache/tomcat/commit/40fa74c74822711ab878079d0a69f7357926723d
- https://github.com/apache/tomcat/commit/4c04982870d6e730c38e21e58fb653b7cf723784
- https://github.com/apache/tomcat/commit/f9f75c14678b68633f79030ddf4ff827f014cc84
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.debian.org/security/2020/dsa-4727
- https://usn.ubuntu.com/4596-1
- https://usn.ubuntu.com/4448-1
- https://tomcat.apache.org/security-9.html
- https://tomcat.apache.org/security-8.html
- https://tomcat.apache.org/security-7.html
- https://tomcat.apache.org/security-10.html
- https://security.netapp.com/advisory/ntap-20200724-0003
- https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html
- https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff0bc7904d44b651e50@%3Cusers.tomcat.apache.org%3E
Verify integrity in audit chain (admin only). AS-IS.