Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-47244

In the Linux kernel, the following vulnerability has been resolved: mptcp: Fix out of bounds when parsing TCP options The TCP option parser in mptcp (mptcp_get_options) could read one byte out of bounds. When the length is 1, the execution flow gets into the loop, reads one byte of the opcode, and if the opcode is neither TCPOPT_EOL nor TCPOPT_NOP, it reads one more byte, which exceeds the length of 1. This fix is inspired by commit 9609dad263f8 ("ipv4: tcp_input: fix stack out of bounds when parsing TCP options.").
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.3%
CVSS Severity
CVSS v3 Score 6.2
Products affected by CVE-2021-47244


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