Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1544)

high Nessus Plugin ID 305232

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1544 advisory.

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: fix infinite loop in attr_load_runs_range on inconsistent metadata (CVE-2025-71265)

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: check return value of indx_find to avoid infinite loop (CVE-2025-71266)

In the Linux kernel, the following vulnerability has been resolved:

fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST (CVE-2025-71267)

In the Linux kernel, the following vulnerability has been resolved:

fs/buffer: add alert in try_to_free_buffers() for folios without buffers (CVE-2025-71295)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (CVE-2026-23231)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/umad: Reject negative data_len in ib_umad_write (CVE-2026-23243)

In the Linux kernel, the following vulnerability has been resolved:

fbcon: check return value of con2fb_acquire_newinfo() (CVE-2026-43123)

In the Linux kernel, the following vulnerability has been resolved:

pstore: ram_core: fix incorrect success return when vmap() fails (CVE-2026-43124)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/umem: Fix double dma_buf_unpin in failure path (CVE-2026-43128)

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Flush dev-IOTLB only when PCIe device is accessible in scalable mode (CVE-2026-43130)

In the Linux kernel, the following vulnerability has been resolved:

dm-verity: correctly handle dm_bufio_client_create() failure (CVE-2026-43132)

In the Linux kernel, the following vulnerability has been resolved:

KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)

In the Linux kernel, the following vulnerability has been resolved:

xfrm6: fix uninitialized saddr in xfrm6_get_saddr() (CVE-2026-43139)

In the Linux kernel, the following vulnerability has been resolved:

mfd: core: Add locking around 'mfd_of_node_list' (CVE-2026-43143)

In the Linux kernel, the following vulnerability has been resolved:

Revert PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV (CVE-2026-43147)

In the Linux kernel, the following vulnerability has been resolved:

perf/arm-cmn: Reject unsupported hardware configurations (CVE-2026-43150)

In the Linux kernel, the following vulnerability has been resolved:

HID: hid-pl: handle probe errors (CVE-2026-43152)

In the Linux kernel, the following vulnerability has been resolved:

xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)

In the Linux kernel, the following vulnerability has been resolved:

md/bitmap: fix GPF in write_page caused by resize race (CVE-2026-43163)

In the Linux kernel, the following vulnerability has been resolved:

EFI/CPER: don't dump the entire memory region (CVE-2026-43171)

In the Linux kernel, the following vulnerability has been resolved:

ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data() (CVE-2026-43186)

In the Linux kernel, the following vulnerability has been resolved:

xfs: delete attr leaf freemap entries when empty (CVE-2026-43187)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)

In the Linux kernel, the following vulnerability has been resolved:

net: consume xmit errors of GSO frames (CVE-2026-43194)

In the Linux kernel, the following vulnerability has been resolved:

PCI: Fix pci_slot_trylock() error handling (CVE-2026-43211)

In the Linux kernel, the following vulnerability has been resolved:

KVM: x86: Add SRCU protection for reading PDPTRs in __get_sregs2() (CVE-2026-43214)

In the Linux kernel, the following vulnerability has been resolved:

net/rds: No shortcut out of RDS_CONN_ERROR (CVE-2026-43226)

In the Linux kernel, the following vulnerability has been resolved:

net/rds: Clear reconnect pending bit (CVE-2026-43230)

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: act_skbedit: fix divide-by-zero in tcf_skbedit_hash() (CVE-2026-43238)

In the Linux kernel, the following vulnerability has been resolved:

x86/kexec: add a sanity check on previous kernel's ima kexec buffer (CVE-2026-43240)

In the Linux kernel, the following vulnerability has been resolved:

arm64: Add support for TSV110 Spectre-BHB mitigation (CVE-2026-43261)

In the Linux kernel, the following vulnerability has been resolved:

EFI/CPER: don't go past the ARM processor CPER record buffer (CVE-2026-43266)

In the Linux kernel, the following vulnerability has been resolved:

ceph: supply snapshot context in ceph_zero_partial_object() (CVE-2026-43273)

In the Linux kernel, the following vulnerability has been resolved:

APEI/GHES: ensure that won't go past CPER allocated record (CVE-2026-43277)

In the Linux kernel, the following vulnerability has been resolved:

dm: clear cloned request bio pointer when last clone bio completes (CVE-2026-43278)

In the Linux kernel, the following vulnerability has been resolved:

drm: Account property blob allocations to memcg (CVE-2026-43287)

In the Linux kernel, the following vulnerability has been resolved:

kexec: derive purgatory entry from symbol (CVE-2026-43289)

In the Linux kernel, the following vulnerability has been resolved:

libceph: define and enforce CEPH_MAX_KEY_LEN (CVE-2026-43304)

In the Linux kernel, the following vulnerability has been resolved:

ACPI: processor: Fix NULL-pointer dereference in acpi_processor_errata_piix4() (CVE-2026-43313)

In the Linux kernel, the following vulnerability has been resolved:

dm: remove fake timeout to avoid leak request (CVE-2026-43314)

In the Linux kernel, the following vulnerability has been resolved:

KVM: nSVM: Remove a user-triggerable WARN on nested_svm_load_cr3() succeeding (CVE-2026-43315)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update kernel --releasever 2023.11.20260406' or or 'dnf update --advisory ALAS2023-2026-1544 --releasever 2023.11.20260406' to update your system.

Plugin Details

Severity: High

ID: 305232

File Name: al2023_ALAS2023-2026-1544.nasl

Version: 1.3

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/7/2026

Updated: 5/14/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-43150

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64, p-cpe:/a:amazon:linux:bpftool, p-cpe:/a:amazon:linux:bpftool-debuginfo, p-cpe:/a:amazon:linux:python3-perf, p-cpe:/a:amazon:linux:python3-perf-debuginfo, p-cpe:/a:amazon:linux:kernel-libbpf, p-cpe:/a:amazon:linux:kernel-libbpf-devel, p-cpe:/a:amazon:linux:kernel-libbpf-static, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:kernel-modules-extra, p-cpe:/a:amazon:linux:kernel-modules-extra-common, p-cpe:/a:amazon:linux:kernel-libbpf-debuginfo, p-cpe:/a:amazon:linux:kernel-livepatch-6.1.166-197.305

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/7/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2025-71265, CVE-2025-71266, CVE-2025-71267, CVE-2025-71295, CVE-2026-23231, CVE-2026-23243, CVE-2026-43123, CVE-2026-43124, CVE-2026-43128, CVE-2026-43130, CVE-2026-43132, CVE-2026-43133, CVE-2026-43139, CVE-2026-43143, CVE-2026-43147, CVE-2026-43150, CVE-2026-43152, CVE-2026-43158, CVE-2026-43163, CVE-2026-43171, CVE-2026-43186, CVE-2026-43187, CVE-2026-43190, CVE-2026-43194, CVE-2026-43211, CVE-2026-43214, CVE-2026-43226, CVE-2026-43230, CVE-2026-43233, CVE-2026-43238, CVE-2026-43240, CVE-2026-43261, CVE-2026-43266, CVE-2026-43273, CVE-2026-43277, CVE-2026-43278, CVE-2026-43287, CVE-2026-43289, CVE-2026-43304, CVE-2026-43313, CVE-2026-43314, CVE-2026-43315

Detections

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