CVE-2024-36913
Vulnerability Summary
Timeline
Description
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or 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. VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens.
CVSS Metrics
- v3.1•HIGH•Score: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Trends
Current EPSS score: 0.04%• Percentile: 13%
Techniques & Countermeasures
- CWE-1258•Exposure of Sensitive System Information Due to Uncleared Debug Information
The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered.
Affected Systems
- debian•debian_linux
11.0
- linux•linux
≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 7f2afcbfe4f6b6047b5f68db5067b7321e5be125 | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 6123a4e8e25bd40cf44db14694abac00e6b664e6 | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < e813a0fc2e597146e9cebea61ced9c796d4e308f | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 03f5a999adba062456c8c818a683beb1b498983a | 5.16
- linux•linux_kernel
≥ 5.16, < 6.1.143 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3
References (5)
- https://git.kernel.org/stable/c/7f2afcbfe4f6b6047b5f68db5067b7321e5be125
- https://git.kernel.org/stable/c/6123a4e8e25bd40cf44db14694abac00e6b664e6
- https://git.kernel.org/stable/c/e813a0fc2e597146e9cebea61ced9c796d4e308f
- https://git.kernel.org/stable/c/03f5a999adba062456c8c818a683beb1b498983a
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html