CVE - CVE-2021-47152

CVE-ID
CVE-2021-47152	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 data stream corruption Maxim reported several issues when forcing a TCP transparent proxy to use the MPTCP protocol for the inbound connections. He also provided a clean reproducer. The problem boils down to 'mptcp_frag_can_collapse_to()' assuming that only MPTCP will use the given page_frag. If others - e.g. the plain TCP protocol - allocate page fragments, we can end-up re-using already allocated memory for mptcp_data_frag. Fix the issue ensuring that the to-be-expanded data fragment is located at the current page frag end. v1 -> v2: - added missing fixes tag (Mat)
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/18e7f0580da15cac1e79d73683ada5a9e70980f8 URL:https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8 MISC:https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 URL:https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 MISC:https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 URL:https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34
Assigning CNA
kernel.org
Date Record Created
20240304	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 (20240304)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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