SB2024081316 - Red Hat Enterprise Linux 9 update for kernel-rt
Published: August 13, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 15 secuirty vulnerabilities.
1) Improper access control (CVE-ID: CVE-2024-26642)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper access restrictions within the nf_tables_newset() function in net/netfilter/nf_tables_api.c. A local user can set arbitrary timeouts, which can result in a denial of service condition.
2) Expired pointer dereference (CVE-ID: CVE-2024-26808)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a stale reference within the nf_tables_netdev_event() function in net/netfilter/nft_chain_filter.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2024-36886)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a use-after-free error within the tipc_buf_append() function in net/tipc/msg.c when processing fragmented TIPC messages. A remote attacker can send specially crafted packets to the system, trigger a use-after-free error and execute arbitrary code on the system in the context of the kernel.
4) Information disclosure (CVE-ID: CVE-2024-26993)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information disclosure within the sysfs_break_active_protection() function in fs/sysfs/file.c. A local user can gain access to sensitive information.
5) Deserialization of Untrusted Data (CVE-ID: CVE-2024-21823)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insecure deserialization in hardware logic. A local user can perform a denial of service (DoS) attack.
6) Improper locking (CVE-ID: CVE-2024-27397)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __nft_rbtree_insert(), nft_rbtree_deactivate() and nft_rbtree_gc() functions in net/netfilter/nft_set_rbtree.c, within the pipapo_get(), nft_pipapo_get(), nft_pipapo_insert(), pipapo_gc() and pipapo_deactivate() functions in net/netfilter/nft_set_pipapo.c, within the nft_rhash_key(), nft_rhash_cmp(), nft_rhash_lookup(), nft_rhash_get(), nft_rhash_update(), nft_rhash_insert() and nft_rhash_deactivate() functions in net/netfilter/nft_set_hash.c, within the nft_trans_gc_catchall_sync() and nf_tables_valid_genid() functions in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.
7) Integer underflow (CVE-ID: CVE-2024-27403)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the flow_offload_dst_cookie() and nft_flow_dst_release() functions in net/netfilter/nf_flow_table_core.c. A local user can execute arbitrary code.
8) Race condition within a thread (CVE-ID: CVE-2024-35898)
The vulnerability allows a local user to manipulate data.
The vulnerability exists due to a data race within the nf_tables_flowtable_parse_hook() and nft_flowtable_type_get() functions in net/netfilter/nf_tables_api.c. A local user can manipulate data.
9) Resource management error (CVE-ID: CVE-2024-35897)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the nf_tables_table_disable() and nf_tables_updtable() functions in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.
10) Use-after-free (CVE-ID: CVE-2024-36971)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to a use-after-free error within the xfrm_link_failure() function in net/xfrm/xfrm_policy.c, within the dst_entry ip6_dst_check() and ip6_dst_check() functions in net/ipv6/route.c, within the dst_entry ipv4_dst_check() and ip_do_redirect() functions in net/ipv4/route.c. A remote attacker can send specially crafted packets to the system and execute arbitrary code.
Note, the vulnerability is being actively exploited in the wild.
11) NULL pointer dereference (CVE-ID: CVE-2024-39502)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ionic_qcq_enable() function in drivers/net/ethernet/pensando/ionic/ionic_lif.c. A local user can perform a denial of service (DoS) attack.
12) Resource management error (CVE-ID: CVE-2024-40978)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the qedi_dbg_do_not_recover_cmd_read() function in drivers/scsi/qedi/qedi_debugfs.c. A local user can perform a denial of service (DoS) attack.
13) Memory leak (CVE-ID: CVE-2021-47624)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the rpc_sysfs_xprt_state_change() function in net/sunrpc/sysfs.c. A local user can perform a denial of service (DoS) attack.
14) Out-of-bounds read (CVE-ID: CVE-2024-41090)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the tap_get_user_xdp() function in drivers/net/tap.c. A local user can perform a denial of service (DoS) attack.
15) Out-of-bounds read (CVE-ID: CVE-2024-41091)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the tun_xdp_one() function in drivers/net/tun.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.