CVE-2023-53769 (GCVE-0-2023-53769)

Vulnerability from cvelistv5 – Published: 2025-12-08 01:19 – Updated: 2025-12-08 01:19
VLAI?
Title
virt/coco/sev-guest: Double-buffer messages
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d5af44dde5461d125d1602ac913ab5c6bdf09b8b , < 577a64725bfd77645986168e953d405067ee565b (git)
Affected: d5af44dde5461d125d1602ac913ab5c6bdf09b8b , < c27dafc4aa50a29ec927b3aa84ac7b430071f682 (git)
Affected: d5af44dde5461d125d1602ac913ab5c6bdf09b8b , < 4b69c63f716cfda38e1210e65b68f67f6cee2ddf (git)
Affected: d5af44dde5461d125d1602ac913ab5c6bdf09b8b , < 965006103a14703cc42043bbf9b5e0cdf7a468ad (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.28 , ≤ 6.1.* (semver)
Unaffected: 6.2.15 , ≤ 6.2.* (semver)
Unaffected: 6.3.2 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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