CVE - CVE-2021-47244

CVE-ID
CVE-2021-47244	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.").
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/07718be265680dcf496347d475ce1a5442f55ad7 URL:https://git.kernel.org/stable/c/07718be265680dcf496347d475ce1a5442f55ad7 MISC:https://git.kernel.org/stable/c/73eeba71dc9932970befa009e68272a3d5ec4a58 URL:https://git.kernel.org/stable/c/73eeba71dc9932970befa009e68272a3d5ec4a58 MISC:https://git.kernel.org/stable/c/76e02b8905d0691e89e104a882f3bba7dd0f6037 URL:https://git.kernel.org/stable/c/76e02b8905d0691e89e104a882f3bba7dd0f6037
Assigning CNA
kernel.org
Date Record Created
20240410	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240410)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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