Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: crypto: virtio - bound the akcipher result length virtio_crypto_dataq_akcipher_callback() sets the result length from the device-reported response length without bounding it to the destination buffer, which was allocated for the original request length. sg_copy_from_buffer() then reads that many bytes from the destination buffer; a backend reporting a larger length over-reads adjacent kernel heap into the caller's scatterlist (an out-of-bounds read). Clamp the reported length to the originally requested destination length. A conforming device reports no more than that, so valid results are unaffected.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78; affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before 12c4f29e97f31b013f77ad65ba7daeb02aaa6abe; affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before 5545de5050cbc3594506d74f2c392b0716cf8bca; affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before 3fda114a42f1510a4ec8a0b17a0cfc997952ccc2; affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before 1f9f877b1ef1fbd4ee95571cddf39c8002cee252; affected a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a before f77a956f6a19f9463ef1527c9d0cda50dded6b92 |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.49 through 6.18.*; unaffected 7.1.13 through 7.1.*; unaffected 7.2.3 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78
- https://git.kernel.org/stable/c/12c4f29e97f31b013f77ad65ba7daeb02aaa6abe
- https://git.kernel.org/stable/c/5545de5050cbc3594506d74f2c392b0716cf8bca
- https://git.kernel.org/stable/c/3fda114a42f1510a4ec8a0b17a0cfc997952ccc2
- https://git.kernel.org/stable/c/1f9f877b1ef1fbd4ee95571cddf39c8002cee252
- https://git.kernel.org/stable/c/f77a956f6a19f9463ef1527c9d0cda50dded6b92