CVE-2016-6817: apache software foundation apache tomcat

Vulnerability summary

CVE-2016-6817 is a high (CVSS 7.5) vulnerability in apache software foundation apache tomcat. EPSS estimates a 7.19% chance of exploitation in the next 30 days, higher than 94.2% of scored vulnerabilities.

Timeline

1. 10-08-2017
   PublishedVulnerability first disclosed.
2. 15-10-2024
   Last modifiedVulnerability information updated.

Description

The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.