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CRITICALCVE-2026-45988Published Modified CNA Linux

CVE-2026-45988: rxrpc: Fix re-decryption of RESPONSE packets

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry. Fix this by just discarding the packet; we will send another CHALLENGE packet and thereby elicit a further response. Similarly, discard an incoming CHALLENGE packet if we get an error whilst generating a RESPONSE; the server will send another CHALLENGE.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
0
Affected Products
2

Fix available

00422e7a4883f25101903f3e8105c0808aa5f4ce96.6.1406.12.866.18.277.0.47.1-rc176cb9a2d252274adfae6e293a292434631a7d4727b89868305052b94a91b708c462bc2281fa42a4ad61482be4aae1835b78875761206241835a7510ef55b383070170e988e4dec28be2af1714d258521
Affected packages
  • Linux / Linux
    < d61482be4aae1835b78875761206241835a7510e (from 17926a79320afa9b95df6b977b40cca6d8713cea) · < 7b89868305052b94a91b708c462bc2281fa42a4a (from 17926a79320afa9b95df6b977b40cca6d8713cea) · < 76cb9a2d252274adfae6e293a292434631a7d472 (from 17926a79320afa9b95df6b977b40cca6d8713cea) · < f55b383070170e988e4dec28be2af1714d258521 (from 17926a79320afa9b95df6b977b40cca6d8713cea) · < 0422e7a4883f25101903f3e8105c0808aa5f4ce9 (from 17926a79320afa9b95df6b977b40cca6d8713cea)
  • Linux / Linux
    2.6.22
    Fixed in 0, 6.6.140, 6.12.86, 6.18.27, 7.0.4, 7.1-rc1
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References