VDB
RHSA-2020%3A3308
RHSA-2020%3A3308
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in Apache Tomcat, where an h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests are made, an OutOfMemoryException could occur, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Web Server (JWS) 5.3 |
Timeline
- Aug 4, 2020 CVE Published
- May 1, 2026 Distribution Patch
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 14, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2020:3308 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=securityPatches&version=5.3 advisory
- https://access.redhat.com/documentation/en-us/red_hat_jboss_web_server/5.3/ advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1857024 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=1857040 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3308.json advisory
- https://access.redhat.com/security/cve/CVE-2020-13934 advisory
- https://www.cve.org/CVERecord?id=CVE-2020-13934 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-13934 advisory
- http://mail-archives.apache.org/mod_mbox/tomcat-announce/202007.mbox/%3Cad62f54e-8fd7-e326-25f1-3bdf1ffa3818%40apache.org%3E advisory
- http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.0-M7 advisory
- http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.105 advisory
- http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.57 advisory
- http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.37 advisory
- https://access.redhat.com/security/cve/CVE-2020-13935 advisory
- https://www.cve.org/CVERecord?id=CVE-2020-13935 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-13935 advisory
- http://mail-archives.apache.org/mod_mbox/tomcat-announce/202007.mbox/%3C39e4200c-6f4e-b85d-fe4b-a9c2bd5fdc3d%40apache.org%3E advisory