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Google: sys-kernel/lakitu-kernel-6_1: security update to 17935.0.0

medium Tenable Self-Hosted Container Security Plugin ID 451412

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: vfio/type1: fix cap_migration
 information leak Fix an information leak where an uninitialized hole in struct
 vfio_iommu_type1_info_cap_migration on the stack is exposed to userspace. The definition of struct
 vfio_iommu_type1_info_cap_migration contains a hole as shown in this pahole(1) output: struct
 vfio_iommu_type1_info_cap_migration { struct vfio_info_cap_header header; /* 0 8 */ __u32 flags; /* 8 4 */
 /* XXX 4 bytes hole, try to pack */ __u64 pgsize_bitmap; /* 16 8 */ __u64 max_dirty_bitmap_size; /* 24 8
 */ /* size: 32, cachelines: 1, members: 4 */ /* sum members: 28, holes: 1, sum holes: 4 */ /* last
 cacheline: 32 bytes */ }; The cap_mig variable is filled in without initializing the hole: static int
 vfio_iommu_migration_build_caps(struct vfio_iommu *iommu, struct vfio_info_cap *caps) { struct
 vfio_iommu_type1_info_cap_migration cap_mig; cap_mig.header.id = VFIO_IOMMU_TYPE1_INFO_CAP_MIGRATION;
 cap_mig.header.version = 1; cap_mig.flags = 0; /* support minimum pgsize */ cap_mig.pgsize_bitmap =
 (size_t)1 << __ffs(iommu->pgsize_bitmap); cap_mig.max_dirty_bitmap_size = DIRTY_BITMAP_SIZE_MAX; return
 vfio_info_add_capability(caps, &cap_mig.header, sizeof(cap_mig)); } The structure is then copied to a
 temporary location on the heap. At this point it's already too late and ioctl(VFIO_IOMMU_GET_INFO) copies
 it to userspace later: int vfio_info_add_capability(struct vfio_info_cap *caps, struct
 vfio_info_cap_header *cap, size_t size) { struct vfio_info_cap_header *header; header =
 vfio_info_cap_add(caps, size, cap->id, cap->version); if (IS_ERR(header)) return PTR_ERR(header);
 memcpy(header + 1, cap + 1, size - sizeof(*header)); return 0; } This issue was found by code inspection.
 (CVE-2023-54137)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 17935.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-113.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 451412

Version: Revision 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.4

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

Vector: CVSS2#AV:L/AC:H/Au:S/C:C/I:N/A:C

CVSS Score Source: CVE-2023-54137

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/21/2021

Reference Information

CVE: CVE-2023-54137