CVE-2024-35840

MEDIUM5.5

mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()

Published May 17, 2024

Modified 11 months ago

Details

In the Linux kernel, the following vulnerability has been resolved:

mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()

subflow_finish_connect() uses four fields (backup, join_id, thmac, none) that may contain garbage unless OPTION_MPTCP_MPJ_SYNACK has been set in mptcp_parse_option()

References

WEB

https://git.kernel.org/stable/c/413b913507326972135d2977975dbff8b7f2c453

WEB

https://git.kernel.org/stable/c/51e4cb032d49ce094605f27e45eabebc0408893c

WEB

https://git.kernel.org/stable/c/76e8de7273a22a00d27e9b8b7d4d043d6433416a

WEB

https://git.kernel.org/stable/c/ad3e8f5c3d5c53841046ef7a947c04ad45a20721

WEB

https://git.kernel.org/stable/c/be1d9d9d38da922bd4beeec5b6dd821ff5a1dfeb

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2024-35840

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedMay 17, 2024

ModifiedMay 4, 2025