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Debian: CVE-2025-21669: linux -- security update

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Debian: CVE-2025-21669: linux -- security update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
01/31/2025
Created
02/11/2025
Added
02/10/2025
Modified
02/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: discard packets if the transport changes If the socket has been de-assigned or assigned to another transport, we must discard any packets received because they are not expected and would cause issues when we access vsk->transport. A possible scenario is described by Hyunwoo Kim in the attached link, where after a first connect() interrupted by a signal, and a second connect() failed, we can find `vsk->transport` at NULL, leading to a NULL pointer dereference.

Solution(s)

  • debian-upgrade-linux

References

  • https://attackerkb.com/topics/cve-2025-21669
  • CVE - 2025-21669
  • DSA-5860-1
  • 查看数 702
  • 已创建
  • 最后回复

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