Amazon Linux 2 Security Advisory: ALASKERNEL-5.10-2024-048
Advisory Release Date: 2024-02-01 20:10 Pacific
Advisory Updated Date: 2024-12-05 01:00 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
2024-12-05: CVE-2023-52683 was added to this advisory.
2024-12-05: CVE-2023-52693 was added to this advisory.
2024-12-05: CVE-2023-52679 was added to this advisory.
2024-09-12: CVE-2023-52675 was added to this advisory.
2024-09-12: CVE-2023-52691 was added to this advisory.
2024-07-03: CVE-2023-52612 was added to this advisory.
2024-07-03: CVE-2024-26633 was added to this advisory.
2024-07-03: CVE-2023-52470 was added to this advisory.
2024-07-03: CVE-2024-26598 was added to this advisory.
2024-06-06: CVE-2023-52698 was added to this advisory.
2024-06-06: CVE-2023-52464 was added to this advisory.
2024-05-09: CVE-2024-26586 was added to this advisory.
2024-04-25: CVE-2023-52448 was added to this advisory.
2024-04-25: CVE-2023-52462 was added to this advisory.
2024-04-25: CVE-2023-52467 was added to this advisory.
2024-03-27: CVE-2023-52439 was added to this advisory.
2024-03-13: CVE-2023-52469 was added to this advisory.
2024-03-13: CVE-2023-52463 was added to this advisory.
A flaw has been found in Xen. An unprivileged guest can cause Denial of Service (DoS) of the host by sending network packets to the backend, causing the backend to crash. (CVE-2023-46838)
In the Linux kernel, the following vulnerability has been resolved:
uio: Fix use-after-free in uio_open
core-1 core-2
-------------------------------------------------------
uio_unregister_device uio_open
idev = idr_find()
device_unregister(&idev->dev)
put_device(&idev->dev)
uio_device_release
get_device(&idev->dev)
kfree(idev)
uio_free_minor(minor)
uio_release
put_device(&idev->dev)
kfree(idev)
-------------------------------------------------------
In the core-1 uio_unregister_device(), the device_unregister will kfree
idev when the idev->dev kobject ref is 1. But after core-1
device_unregister, put_device and before doing kfree, the core-2 may
get_device. Then:
1. After core-1 kfree idev, the core-2 will do use-after-free for idev.
2. When core-2 do uio_release and put_device, the idev will be double
freed.
To address this issue, we can get idev atomic & inc idev reference with
minor_lock. (CVE-2023-52439)
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
Syzkaller has reported a NULL pointer dereference when accessing
rgd->rd_rgl in gfs2_rgrp_dump(). This can happen when creating
rgd->rd_gl fails in read_rindex_entry(). Add a NULL pointer check in
gfs2_rgrp_dump() to prevent that. (CVE-2023-52448)
In the Linux kernel, the following vulnerability has been resolved:
bpf: fix check for attempt to corrupt spilled pointer (CVE-2023-52462)
In the Linux kernel, the following vulnerability has been resolved: efivarfs: force RO when remounting if SetVariable is not supported If SetVariable at runtime is not supported by the firmware we never assign a callback for that function. At the same time mount the efivarfs as RO so no one can call that. However, we never check the permission flags when someone remounts the filesystem as RW. As a result this leads to a crash (CVE-2023-52463)
In the Linux kernel, the following vulnerability has been resolved:
EDAC/thunderx: Fix possible out-of-bounds string access
Enabling -Wstringop-overflow globally exposes a warning for a common bug
in the usage of strncat():
drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr':
drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=]
1136 | strncat(msg, other, OCX_MESSAGE_SIZE);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
...
1145 | strncat(msg, other, OCX_MESSAGE_SIZE);
...
1150 | strncat(msg, other, OCX_MESSAGE_SIZE);
...
Apparently the author of this driver expected strncat() to behave the
way that strlcat() does, which uses the size of the destination buffer
as its third argument rather than the length of the source buffer. The
result is that there is no check on the size of the allocated buffer.
Change it to strlcat().
[ bp: Trim compiler output, fixup commit message. ] (CVE-2023-52464)
In the Linux kernel, the following vulnerability has been resolved:
mfd: syscon: Fix null pointer dereference in of_syscon_register()
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. (CVE-2023-52467)
In the Linux kernel, the following vulnerability has been resolved:
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
When ps allocated by kzalloc equals to NULL, kv_parse_power_table
frees adev->pm.dpm.ps that allocated before. However, after the control
flow goes through the following call chains:
kv_parse_power_table
|-> kv_dpm_init
|-> kv_dpm_sw_init
|-> kv_dpm_fini
The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its
first free in kv_parse_power_table and causes a use-after-free bug. (CVE-2023-52469)
In the Linux kernel, the following vulnerability has been resolved:
drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
check the alloc_workqueue return value in radeon_crtc_init()
to avoid null-ptr-deref. (CVE-2023-52470)
In the Linux kernel, the following vulnerability has been resolved:
crypto: scomp - fix req->dst buffer overflow (CVE-2023-52612)
In the Linux kernel, the following vulnerability has been resolved:
powerpc/imc-pmu: Add a null pointer check in update_events_in_group() (CVE-2023-52675)
In the Linux kernel, the following vulnerability has been resolved:
of: Fix double free in of_parse_phandle_with_args_map (CVE-2023-52679)
In the Linux kernel, the following vulnerability has been resolved:
ACPI: LPIT: Avoid u32 multiplication overflow (CVE-2023-52683)
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/pm: fix a double-free in si_dpm_init (CVE-2023-52691)
In the Linux kernel, the following vulnerability has been resolved:
ACPI: video: check for error while searching for backlight device parent (CVE-2023-52693)
In the Linux kernel, the following vulnerability has been resolved:
calipso: fix memory leak in netlbl_calipso_add_pass() (CVE-2023-52698)
An out-of-bounds access vulnerability involving netfilter was reported and fixed as: f1082dd31fe4 (netfilter: nf_tables: Reject tables of unsupported family); While creating a new netfilter table, lack of a safeguard against invalid nf_tables family (pf) values within `nf_tables_newtable` function enables an attacker to achieve out-of-bounds access. (CVE-2023-6040)
A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return. (CVE-2023-6915)
An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service. (CVE-2024-0565)
netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() (CVE-2024-0607)
An out-of-bounds memory write flaw was found in the Linux kernel's Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2024-0646)
In rds_recv_track_latency in net/rds/af_rds.c in the Linux kernel through 6.7.1, there is an off-by-one error for an RDS_MSG_RX_DGRAM_TRACE_MAX comparison, resulting in out-of-bounds access. (CVE-2024-23849)
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix stack corruption When tc filters are first added to a net device, the corresponding local port gets bound to an ACL group in the device. (CVE-2024-26586)
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache (CVE-2024-26598)
In the Linux kernel, the following vulnerability has been resolved:
ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim() (CVE-2024-26633)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 - Kernel-5.10 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
aarch64:
kernel-5.10.209-198.812.amzn2.aarch64
kernel-headers-5.10.209-198.812.amzn2.aarch64
kernel-debuginfo-common-aarch64-5.10.209-198.812.amzn2.aarch64
perf-5.10.209-198.812.amzn2.aarch64
perf-debuginfo-5.10.209-198.812.amzn2.aarch64
python-perf-5.10.209-198.812.amzn2.aarch64
python-perf-debuginfo-5.10.209-198.812.amzn2.aarch64
kernel-tools-5.10.209-198.812.amzn2.aarch64
kernel-tools-devel-5.10.209-198.812.amzn2.aarch64
kernel-tools-debuginfo-5.10.209-198.812.amzn2.aarch64
bpftool-5.10.209-198.812.amzn2.aarch64
bpftool-debuginfo-5.10.209-198.812.amzn2.aarch64
kernel-devel-5.10.209-198.812.amzn2.aarch64
kernel-debuginfo-5.10.209-198.812.amzn2.aarch64
kernel-livepatch-5.10.209-198.812-1.0-0.amzn2.aarch64
i686:
kernel-headers-5.10.209-198.812.amzn2.i686
src:
kernel-5.10.209-198.812.amzn2.src
x86_64:
kernel-5.10.209-198.812.amzn2.x86_64
kernel-headers-5.10.209-198.812.amzn2.x86_64
kernel-debuginfo-common-x86_64-5.10.209-198.812.amzn2.x86_64
perf-5.10.209-198.812.amzn2.x86_64
perf-debuginfo-5.10.209-198.812.amzn2.x86_64
python-perf-5.10.209-198.812.amzn2.x86_64
python-perf-debuginfo-5.10.209-198.812.amzn2.x86_64
kernel-tools-5.10.209-198.812.amzn2.x86_64
kernel-tools-devel-5.10.209-198.812.amzn2.x86_64
kernel-tools-debuginfo-5.10.209-198.812.amzn2.x86_64
bpftool-5.10.209-198.812.amzn2.x86_64
bpftool-debuginfo-5.10.209-198.812.amzn2.x86_64
kernel-devel-5.10.209-198.812.amzn2.x86_64
kernel-debuginfo-5.10.209-198.812.amzn2.x86_64
kernel-livepatch-5.10.209-198.812-1.0-0.amzn2.x86_64