The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to the prctl syscall. The patch that added the support for the conditional mitigation via prctl (ib_prctl_set) dates back to the kernel 4.9.176.
We recommend upgrading past commit a664ec9158eeddd75121d39c9a0758016097fa96
References
Link | Resource |
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https://git.kernel.org/tip/a664ec9158eeddd75121d39c9a0758016097fa96 | Mailing List Patch |
https://github.com/google/security-research/security/advisories/GHSA-9x5g-vmxf-4qj8 | Exploit Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html | Mailing List Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html | Mailing List Third Party Advisory |
https://security.netapp.com/advisory/ntap-20230714-0001/ | Third Party Advisory |
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History
02 Aug 2023, 17:12
Type | Values Removed | Values Added |
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References | (MISC) https://github.com/google/security-research/security/advisories/GHSA-9x5g-vmxf-4qj8 - Exploit, Third Party Advisory |
23 Jul 2023, 02:15
Type | Values Removed | Values Added |
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21 Jul 2023, 19:21
Type | Values Removed | Values Added |
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References | (MISC) https://security.netapp.com/advisory/ntap-20230714-0001/ - Third Party Advisory | |
CPE | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* |
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Netapp h410s Firmware
Netapp h500s Firmware Netapp h300s Netapp active Iq Unified Manager Netapp h700s Netapp h410s Netapp Netapp h700s Firmware Netapp h410c Netapp h300s Firmware Netapp h500s Netapp h410c Firmware |
18 Jul 2023, 08:15
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Information
Published : 2023-04-25 23:15
Updated : 2024-02-28 20:13
NVD link : CVE-2023-0045
Mitre link : CVE-2023-0045
CVE.ORG link : CVE-2023-0045
JSON object : View
Products Affected
netapp
- h410c_firmware
- h300s_firmware
- h500s_firmware
- h410s_firmware
- h500s
- h700s_firmware
- h410s
- h410c
- h300s
- h700s
- active_iq_unified_manager
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-610
Externally Controlled Reference to a Resource in Another Sphere