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
Configurations
Configuration 1 (hide)
|
History
13 Mar 2025, 21:24
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* |
|
| CWE | CWE-787 | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| References | () https://git.kernel.org/stable/c/18e7f0580da15cac1e79d73683ada5a9e70980f8 - Patch | |
| References | () https://git.kernel.org/stable/c/29249eac5225429b898f278230a6ca2baa1ae154 - Patch | |
| References | () https://git.kernel.org/stable/c/3267a061096efc91eda52c2a0c61ba76e46e4b34 - Patch |
Information
Published : 2024-03-25 09:15
Updated : 2025-03-13 21:24
NVD link : CVE-2021-47152
Mitre link : CVE-2021-47152
CVE.ORG link : CVE-2021-47152
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write