CVE-2020-13934
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 9.0.37-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 9.0.37-1 |
| sid | Fixed | 9.0.37-1 |
| forky | Fixed | 9.0.37-1 |
| bullseye | Fixed | 9.0.37-1 |
| bookworm | Fixed | 9.0.37-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >=10.0.0-M1,<10.0.0-M6 | 10.0.0-M6 |
| Maven | org.apache.tomcat:tomcat | >=9.0.0.M5,<9.0.36 | 9.0.36 |
| Maven | org.apache.tomcat:tomcat | >=8.5.1,<8.5.56 | 8.5.56 |
| Maven | org.apache.tomcat:tomcat-coyote | >=10.0.0-M1,<10.0.0-M6 | 10.0.0-M6 |
| Maven | org.apache.tomcat:tomcat-coyote | >=9.0.0.M5,<9.0.36 | 9.0.36 |
| Maven | org.apache.tomcat:tomcat-coyote | >=8.5.1,<8.5.56 | 8.5.56 |
| MAVEN | org.apache.tomcat:tomcat-coyote | >= 8.5.1, < 8.5.56 | 8.5.56 |
| MAVEN | org.apache.tomcat:tomcat-coyote | >= 9.0.0.M5, < 9.0.36 | 9.0.36 |
| MAVEN | org.apache.tomcat:tomcat-coyote | >= 10.0.0-M1, <= 10.0.0-M5 | 10.0.0-M6 |
| MAVEN | org.apache.tomcat:tomcat | >= 8.5.1, < 8.5.56 | 8.5.56 |
| MAVEN | org.apache.tomcat:tomcat | >= 9.0.0.M5, < 9.0.36 | 9.0.36 |
| MAVEN | org.apache.tomcat:tomcat | >= 10.0.0-M1, <= 10.0.0-M5 | 10.0.0-M6 |
References
- https://www.suse.com/security/cve/CVE-2020-13934.html
- https://nvd.nist.gov/vuln/detail/CVE-2020-13934
- https://github.com/apache/tomcat
- https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5362aac8@%3Cdev.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html
- https://security.netapp.com/advisory/ntap-20200724-0003
- https://usn.ubuntu.com/4596-1
- https://www.debian.org/security/2020/dsa-4727
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html
- https://security-tracker.debian.org/tracker/CVE-2020-13934
- https://github.com/advisories/GHSA-vf77-8h7g-gghp
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.