DEBIAN-CVE-2021-47152
Record from OSV · Published March 25, 2024
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)
Fixed versions
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| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:13 | 5.14.6-1 |
| linux | Debian:12 | 5.14.6-1 |
| linux | Debian:14 | 5.14.6-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | linux | 0 |
| Debian:12 | linux | 0 |
| Debian:14 | linux | 0 |
| Debian | linux |
Timeline
- Mar 25, 2024 CVE Published
- Oct 23, 2026 CVE Updated
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