CVE-2024-25744
published 2024-02-12CVE-2024-25744: In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and…
PriorityP341high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.28%
19.8th percentile
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.69-1 (bookworm) | linux 6.1.69-1 (bookworm) |
| linux | linux_kernel | < 6.6.7 | 6.6.7 |
| linux | linux_kernel | >= 0 < 6.1.69-1 | 6.1.69-1 |
| linux | linux_kernel | >= 0 < 6.6.8-1 | 6.6.8-1 |
| linux | linux_kernel | >= 0 < 6.6.8-1 | 6.6.8-1 |
| linux | linux_kernel | >= 0 < 5.15.0-125.135 | 5.15.0-125.135 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
vendor_ubuntu8.8HIGH
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OSV
linux-azure-5.15 vulnerabilities
osv·2025-01-09·CVSS 8.8
CVE-2020-12351 [HIGH] linux-azure-5.15 vulnerabilities
linux-azure-5.15 vulnerabilities
Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux
kernel contained a type-confusion error. A physically proximate remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-12351)
Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux
kernel did not properly initialize memory in some situations. A physically
proximate remote attacker could use this to expose sensitive information
(kernel memory). (CVE-2020-12352)
Andy Nguyen discovered that the Bluetooth HCI event packet parser in the
Linux kernel did not properly handle event advertisements of certain sizes,
leading to a heap-based buffer overflow. A physically proximate remote
attacker could use
OSV
linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities
osv·2024-12-09·CVSS 8.8
CVE-2024-25744 [HIGH] linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities
linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- Ser
OSV
linux-azure vulnerabilities
osv·2024-11-20·CVSS 7.1
CVE-2023-6610 [HIGH] linux-azure vulnerabilities
linux-azure vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly validate certain SMB messages, leading to an
out-of-bounds read vulnerability. An attacker could use this to cause a
denial of service (system crash) or possibly expose sensitive information.
(CVE-2023-6610)
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could
OSV
linux-aws vulnerabilities
osv·2024-11-12·CVSS 8.8
CVE-2024-25744 [HIGH] linux-aws vulnerabilities
linux-aws vulnerabilities
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- Serial ATA and Parallel ATA drive
OSV
linux, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvi
osv·2024-11-11·CVSS 8.8
[HIGH] linux, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvi
linux, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, linux-raspi, linux-xilinx-zynqmp vulnerabilities
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This upda
OSV
CVE-2024-25744: In the Linux kernel before 6
osv·2024-02-12·CVSS 8.8
CVE-2024-25744 [HIGH] CVE-2024-25744: In the Linux kernel before 6
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
GHSA
GHSA-ffqq-vj92-hpx8: In the Linux kernel before 6
ghsa_unreviewed·2024-02-12
CVE-2024-25744 [HIGH] CWE-693 GHSA-ffqq-vj92-hpx8: In the Linux kernel before 6
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-09·CVSS 8.8
CVE-2024-50006 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux
kernel contained a type-confusion error. A physically proximate remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-12351)
Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux
kernel did not properly initialize memory in some situations. A physically
proximate remote attacker could use this to expose sensitive information
(kernel memory). (CVE-2020-12352)
Andy Nguyen discovered that the Bluetooth HCI event packet parser in the
Linux kernel did not properly handle event advertisements of certain sizes,
leading to a
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2024-12-09·CVSS 8.8
CVE-2024-43846 [HIGH] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 arch
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-11-20·CVSS 7.1
CVE-2024-46752 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly validate certain SMB messages, leading to an
out-of-bounds read vulnerability. An attacker could use this to cause a
denial of service (system crash) or possibly expose sensitive information.
(CVE-2023-6610)
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-12·CVSS 8.8
CVE-2024-46815 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- B
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-11·CVSS 8.8
CVE-2024-43908 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- B
Red Hat
kernel: untrusted VMM can trigger int80 syscall handling
vendor_redhat·2024-02-12·CVSS 8.8
CVE-2024-25744 [HIGH] kernel: untrusted VMM can trigger int80 syscall handling
kernel: untrusted VMM can trigger int80 syscall handling
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
A flaw was found in the Linux kernel. A VMM can inject external interrupts on any arbitrary vector at any time, which may allow the guest OS to be manipulated from the VMM side.
Mitigation: This vulnerability can be mitigated by disabling 32-bit emulation by default for TDX and SEV. The user can override it with the ia32_emulation=y command line option.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel-rt (Red Hat Enterprise Linux 7) - Out of supp
Debian
CVE-2024-25744: linux - In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall han...
vendor_debian·2024·CVSS 8.8
CVE-2024-25744 [HIGH] CVE-2024-25744: linux - In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall han...
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
Scope: local
bookworm: resolved (fixed in 6.1.69-1)
bullseye: resolved
forky: resolved (fixed in 6.6.8-1)
sid: resolved (fixed in 6.6.8-1)
trixie: resolved (fixed in 6.6.8-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2024-25744 kernel: untrusted VMM can trigger int80 syscall handling
bugzilla·2024-02-12·CVSS 8.8
CVE-2024-25744 [HIGH] CVE-2024-25744 kernel: untrusted VMM can trigger int80 syscall handling
CVE-2024-25744 kernel: untrusted VMM can trigger int80 syscall handling
In the Linux kernel before 6.6.7, an untrusted VMM can trigger int80 syscall handling at any given point. This is related to arch/x86/coco/tdx/tdx.c and arch/x86/mm/mem_encrypt_amd.c.
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b82a8dbd3d2f4563156f7150c6f2ecab6e960b30
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 2264076]
---
This was fixed for Fedora with the 6.6.7 stable kernel updates.
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9.2 Extended Update Support
Via RHSA-2024:2846 https://access.redhat.com/errata/RHSA-2024:2846
---
This is
arXiv
Attestable Builds: Compiling Verifiable Binaries on Untrusted Systems using Trusted Execution Environments
arxiv_fulltext·2025-10-24
Attestable Builds: Compiling Verifiable Binaries on Untrusted Systems using Trusted Execution Environments
Attestable Builds: Compiling Verifiable Binaries on Untrusted Systems using Trusted Execution Environments
Daniel Hugenroth
These authors contributed equally to this work.
[email protected]
0000-0003-3413-1722
University of Cambridge
Cambridge
United Kingdom
Mario Lins
[1]
[email protected]
0000-0003-1713-3347
Johannes Kepler University Linz
Linz
Austria
René Mayrhofer
[email protected]
0000-0003-1566-4646
Johannes Kepler University Linz
Linz
Austria
Alastair R. Beresford
[email protected]
0000-0003-0818-6535
University of Cambridge
Cambridge
United Kingdom
CCSXML
10002978.10003022.10003023
Security and privacy Software security engineering
500
10002978.10003006.10003007.10003009
Security and privacy Trusted computing
500
10002978.10003001.10003599.10011621
Security and
arXiv
Heckler: Breaking Confidential VMs with Malicious Interrupts
arxiv_fulltext·2024-04-04
Heckler: Breaking Confidential VMs with Malicious Interrupts
: Breaking Confidential VMs with Interrupts
Benedict Schlüter Supraja Sridhara Mark Kuhne Andrin Bertschi Shweta Shinde
ETH Zurich
## Abstract
5pt
Hardware-based Trusted execution environments (TEEs) offer
an isolation granularity of virtual machine abstraction. They provide confidential VMs (CVMs) that host security-sensitive code and data.
AMD SEV-SNP and Intel TDX enable CVMs and are now available on popular cloud platforms.
The untrusted hypervisor in these settings is in control of several resource management and configuration tasks, including interrupts.
We present , a new attack wherein the hypervisor injects malicious non-timer interrupts to break the confidentiality and integrity of CVMs.
Our insight is to use the interrupt handlers that have global effects, such that we can m
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.7https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b82a8dbd3d2f4563156f7150c6f2ecab6e960b30https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.7https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b82a8dbd3d2f4563156f7150c6f2ecab6e960b30https://security.netapp.com/advisory/ntap-20241115-0006/
2024-02-12
Published