NULL pointer dereference in Apache Tomcat
CVE-2020-13934
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.
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: 0.641 (99.2th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.641 · newest: 0.641 · change: 0.000
Affected products
- Apache Tomcat — versions 9.0.0, 10.0.0
- 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 Communications Instant Messaging Server — versions 10.0.1.5.0
- Oracle Fmw Platform — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Instantis Enterprisetrack — versions 17.1, 17.2, 17.3
- Oracle Managed File Transfer — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle MySQL Enterprise Monitor
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652e… (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)
- lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5… (mailing-list)
- www.oracle.com/security-alerts/cpuoct2020.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200724-0003/ (Third Party Advisory)
- usn.ubuntu.com/4596-1/ (vendor-advisory, Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2021.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13934?
- CVE-2020-13934 is a high-severity vulnerability in Apache Tomcat, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.5/10. Published 2020-07-14.
- How severe is CVE-2020-13934?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-13934 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.