rhsa-2024_1306
Vulnerability from csaf_redhat
Published
2024-03-13 09:11
Modified
2024-09-16 17:03
Summary
Red Hat Security Advisory: kernel-rt security and bug fix update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.
'Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480)
* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)
* use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)
* nfp: use-after-free in area_cache_get() (CVE-2022-3545)
* NULL pointer dereference in can_rcv_filter (CVE-2023-2166)
* Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)
* UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
* out-of-bounds access in relay_file_read (CVE-2023-3268)
* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (CVE-2023-4459)
* Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982,Downfall)
* net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)
* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)
* Race Condition leading to UAF in Unix Socket could happen in sk_receive_queue ()
* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)
* use after free in unix_stream_sendpage (CVE-2023-4622)
* bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)
* A heap out-of-bounds write when function perf_read_group is called and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)
* use-after-free in IPv4 IGMP (CVE-2023-6932)
* GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546,ZDI-CAN-20527)
* refcount leak in ctnetlink_create_conntrack() (CVE-2023-7192)
Bug Fix(es):
* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (JIRA:RHEL-1107)
* out-of-bounds access in relay_file_read (JIRA:RHEL-1749)
* vmxnet3: NULL pointer dereference in vmxnet3_rq_cleanup() (JIRA:RHEL-18085)
* NULL pointer dereference in can_rcv_filter (JIRA:RHEL-19524)
* update RT source tree to the latest RHEL-9.0.z Batch 15 (JIRA:RHEL-21555)
* Gather Data Sampling (GDS) side channel vulnerability (JIRA:RHEL-9285)
* A heap out-of-bounds write (JIRA:RHEL-18011)
* Slab-out-of-bound read in compare_netdev_and_ip (JIRA:RHEL-19398)
* A flaw leading to a use-after-free in area_cache_get() (JIRA:RHEL-19534)
* Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (JIRA:RHEL-8980)
* various flaws (JIRA:RHEL-16150)
* refcount leak in ctnetlink_create_conntrack() (JIRA:RHEL-20311)
* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (JIRA:RHEL-20502)
* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (JIRA:RHEL-22095)
* use-after-free in smb2_is_status_io_timeout() (JIRA:RHEL-15171)
* use-after-free in IPv4 IGMP (JIRA:RHEL-21658)
* memcg does not limit the number of POSIX file locks allowing memory exhaustion (JIRA:RHEL-8996)
* GSM multiplexing race condition leads to privilege escalation (JIRA:RHEL-19968)
* NULL pointer dereference in vmw_cmd_dx_define_query (JIRA:RHEL-22751)
* kernel: sched/membarrier: reduce the ability to hammer on sys_membarrier
(JIRA:RHEL-26381)
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"name": "Allocation of Resources Without Limits or Throttling"
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{
"category": "description",
"text": "A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX) file locks.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"ids": [
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{
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"text": "A NULL pointer dereference issue was found in the Linux kernel\u0027s vmwgfx driver in vmw_cmd_dx_define_query. This flaw allows a local, unprivileged attacker with access to either /dev/dri/card0 or /dev/dri/rendererD128, who can issue an ioctl() on the resulting file descriptor, to crash the system, causing a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query",
"title": "Vulnerability summary"
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{
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"text": "Systems making use of the vmwgfx driver are potentially affected by this flaw; systems without the vmwgfx driver loaded are not affected by this flaw.",
"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"text": "A Gather Data Sampling (GDS) transient execution side-channel vulnerability was found affecting certain Intel processors. This issue may allow a local attacker using gather instruction (load from memory) to infer stale data from previously used vector registers on the same physical core.",
"title": "Vulnerability description"
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"text": "hw: Intel: Gather Data Sampling (GDS) side channel vulnerability",
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},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"ids": [
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"title": "Vulnerability description"
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{
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"text": "kernel: use-after-free in smb2_is_status_io_timeout()",
"title": "Vulnerability summary"
},
{
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"text": "Because analysis indicates that this issue will only cause momentary interruptions to connections, Red Hat rates the impact of this flaw as Low.",
"title": "Statement"
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{
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{
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{
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{
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"text": "An incorrect verifier pruning flaw was found in BPF in the Linux Kernel that may lead to unsafe code paths incorrectly marked as safe, resulting in arbitrary read/writes in kernel memory, lateral privilege escalation, and container escape.",
"title": "Vulnerability description"
},
{
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"text": "kernel: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe",
"title": "Vulnerability summary"
},
{
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"text": "The Red Hat Enterprise Linux 9.3 not affected, because the required patch applied before this CVE creation. For the Red Hat Enterprise Linux 9 before version 9.3 required fixes applied too.",
"title": "Statement"
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{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"category": "external",
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{
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{
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},
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"ids": [
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{
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NULL pointer dereference in can_rcv_filter",
"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"title": "kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination"
}
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}
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