CVE-2024-45009

MEDIUM EPSS 12.6%
Published Sep 11, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 11, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only decrement add_addr_accepted for MPJ req Adding the following warning ... WARN_ON_ONCE(msk->pm.add_addr_accepted == 0) ... before decrementing the add_addr_accepted counter helped to find a bug when running the "remove single subflow" subtest from the mptcp_join.sh selftest. Removing a 'subflow' endpoint will first trigger a RM_ADDR, then the subflow closure. Before this patch, and upon the reception of the RM_ADDR, the other peer will then try to decrement this add_addr_accepted. That's not correct because the attached subflows have not been created upon the reception of an ADD_ADDR. A way to solve that is to decrement the counter only if the attached subflow was an MP_JOIN to a remote id that was not 0, and initiated by the host receiving the RM_ADDR.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥5.10  –  <5.15.167
linuxlinux_kernel*≥5.16  –  <6.1.107
linuxlinux_kernel*≥6.2  –  <6.6.48
linuxlinux_kernel*≥6.7  –  <6.10.7
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/1c1f721375989579e46741f59523e39ec9b2a9bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2060f1efab370b496c4903b840844ecaff324c3c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35b31f5549ede4070566b949781e83495906b43d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/85b866e4c4e63a1d7afb58f1e24273caad03d0b7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d20bf2c96d7ffd171299b32f562f70e5bf5dc608
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1c1f721375989579e46741f59523e39ec9b2a9bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2060f1efab370b496c4903b840844ecaff324c3c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/35b31f5549ede4070566b949781e83495906b43d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/85b866e4c4e63a1d7afb58f1e24273caad03d0b7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d20bf2c96d7ffd171299b32f562f70e5bf5dc608
    Patch