CVE-2025-39718High· 8.4▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Validate length in packet header before skb_put() When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 46.2 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: Validate length in packet header before skb_put()
When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio_vsock_skb_rx_put(). Unfortunately, virtio_vsock_skb_rx_put() uses the length from the packet header as the length argument to skb_put(), potentially resulting in SKB overflow if the host has gone wonky.
Validate the length as advertised by the packet header before calling virtio_vsock_skb_rx_put().
Linux >= baddcc2c71572968cdaeee1c4ab3dc0ad90fa765 < 969b06bd8b7560efb100a34227619e7d318fbe05Linux >= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < ee438c492b2e0705d819ac0e25d04fae758d8f8fLinux >= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < faf332a10372390ce65d0b803888f4b25a388335Linux >= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < 676f03760ca1d69c2470cef36c44dc152494b47cLinux >= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < 0dab92484474587b82e8e0455839eaf5ac7bf894Linux >= 6.1.63 < 6.1.149Linux 6.3Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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