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| Rule General Information |
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| Release Date: | 2020-08-04 | |
| Rule Name: | Apache Tomcat HTTP2 H2C Memory Exhaustion Denial of Service Vulnerability (CVE-2020-13934) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| 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. | |
| Impact: | An attacker could exploit this vulnerability to have unspecified effect. | |
| Affected OS: | Windows, Linux, Others | |
| Reference: | http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html |
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| Solutions |
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| The vendors have released upgrade patches to fix vulnerabilities, please visit: https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E |