The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_1306.json

Red Hat officially shut down their mailing list notifications October 10, 2023.  Due to this, Packet Storm has recreated the below data as a reference point to raise awareness.  It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




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Red Hat Security Advisory

Synopsis:           Important: kernel-rt security and bug fix update
Advisory ID:        RHSA-2024:1306-03
Product:            Red Hat Enterprise Linux
Advisory URL:       https://access.redhat.com/errata/RHSA-2024:1306
Issue date:         2024-03-13
Revision:           03
CVE Names:          CVE-2022-0480
====================================================================

Summary: 

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.




Description:

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)


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2022-0480

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2049700
https://bugzilla.redhat.com/show_bug.cgi?id=2133452
https://bugzilla.redhat.com/show_bug.cgi?id=2154178
https://bugzilla.redhat.com/show_bug.cgi?id=2161310
https://bugzilla.redhat.com/show_bug.cgi?id=2187813
https://bugzilla.redhat.com/show_bug.cgi?id=2187931
https://bugzilla.redhat.com/show_bug.cgi?id=2213260
https://bugzilla.redhat.com/show_bug.cgi?id=2215502
https://bugzilla.redhat.com/show_bug.cgi?id=2219268
https://bugzilla.redhat.com/show_bug.cgi?id=2223949
https://bugzilla.redhat.com/show_bug.cgi?id=2225201
https://bugzilla.redhat.com/show_bug.cgi?id=2230042
https://bugzilla.redhat.com/show_bug.cgi?id=2230094
https://bugzilla.redhat.com/show_bug.cgi?id=2231800
https://bugzilla.redhat.com/show_bug.cgi?id=2237760
https://bugzilla.redhat.com/show_bug.cgi?id=2240249
https://bugzilla.redhat.com/show_bug.cgi?id=2246945
https://bugzilla.redhat.com/show_bug.cgi?id=2253908
https://bugzilla.redhat.com/show_bug.cgi?id=2255283
https://bugzilla.redhat.com/show_bug.cgi?id=2255498
https://bugzilla.redhat.com/show_bug.cgi?id=2256279
https://bugzilla.redhat.com/show_bug.cgi?id=2267695