Vulnerability details
CVE-2023-53769
Linux Linux
virt/coco/sev-guest: Double-buffer messages
CVSS 3.1
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.19 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d5af44dde5461d125d1602ac913ab5c6bdf09b8b ≤ v < 577a64725bfd77645986168e953d405067ee565b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d5af44dde5461d125d1602ac913ab5c6bdf09b8b ≤ v < c27dafc4aa50a29ec927b3aa84ac7b430071f682 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d5af44dde5461d125d1602ac913ab5c6bdf09b8b ≤ v < 4b69c63f716cfda38e1210e65b68f67f6cee2ddf | CVEProject cvelistV5 (CNA) |
| Linux | Linux | d5af44dde5461d125d1602ac913ab5c6bdf09b8b ≤ v < 965006103a14703cc42043bbf9b5e0cdf7a468ad | CVEProject cvelistV5 (CNA) |
References and advisories
4
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Details
- Published
- 2025-12-08
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.1%
Probability of exploitation in 30 days
1.2%
Percentile (among all CVEs)
Weaknesses (CWE)
- —