Description
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Validate length for CCA ECC private key requests cca_ecc2protkey() derives the copy length for the CPRB parameter block directly from the length field in the key token. Reject the request early if the token length exceeds the available space in the parameter block.
References8
- git.kernel.org/stable/c/013a4484f061a2b41f052e25c0015203287e63f1
- git.kernel.org/stable/c/447a37a6bef11bfd3645069e380460b11386e2b9
- git.kernel.org/stable/c/7dc306ff7c4d951582adaae65e0aee9fb4968dbe
- git.kernel.org/stable/c/8fa3e9435a13c335efb63fb4f4e77531a0031159
- git.kernel.org/stable/c/a9ae0f6dd45c3ccc1d69363f7aea8af179122730
- git.kernel.org/stable/c/dd25bd9b0f36849808bd7625dcc59dd4c1aeef3e
- git.kernel.org/stable/c/ecc3b8691c1935f9f3e4eb964ab11e40fdec17f5
- git.kernel.org/stable/c/f0831f13c42c1261d449dcee8a035e1c6cd9fcaa
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 12 November 2026
- CWE
- CWE-120
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