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CVE-2023-53769

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CVE-2023-53769

Published: Dec 8, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: virt/coco/sev-guest: Double-buffer messages The encryption algorithms read and write directly to shared unencrypted memory, which may leak information as well as permit the host to tamper with the message integrity. Instead, copy whole messages in or out as needed before doing any computation on them.

VendorProductVersions

Linux

Linux

affected
d5af44dde5461d125d1602ac913ab5c6bdf09b8b - < 577a64725bfd77645986168e953d405067ee565b
affected
d5af44dde5461d125d1602ac913ab5c6bdf09b8b - < c27dafc4aa50a29ec927b3aa84ac7b430071f682
affected
d5af44dde5461d125d1602ac913ab5c6bdf09b8b - < 4b69c63f716cfda38e1210e65b68f67f6cee2ddf
affected
d5af44dde5461d125d1602ac913ab5c6bdf09b8b - < 965006103a14703cc42043bbf9b5e0cdf7a468ad

Linux

Linux

affected
5.19
unaffected
0 - < 5.19
unaffected
6.1.28 - <= 6.1.*
unaffected
6.2.15 - <= 6.2.*
unaffected
6.3.2 - <= 6.3.*

+1 more versions

References

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