Vulnerability in Linux
CVE-2024-57793
In the Linux kernel, the following vulnerability has been resolved: virt: tdx-guest: Just leak decrypted memory on unrecoverable errors In CoCo VMs it is possible for the untrusted host to cause set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. Leak the decrypted memory when set_memory_decrypted() fails, and don't need to print an error since set_memory_decrypted() will call WARN_ONCE().
EPSS: 0.002 (9.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Linux — versions f4738f56d1dc62aaba69b33702a5ab098f1b8c63, 6.7, 0
- Linux Linux_kernel — versions 6.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-57793?
- CVE-2024-57793 is a critical-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 9.3/10. Published 2025-01-11.
- How severe is CVE-2024-57793?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2024-57793 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.