SB20240821101 - Red Hat Enterprise Linux 8 update for kernel
Published: August 21, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2023-52434)
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the smb2_parse_contexts() function when parsing SMB packets. A remote user can send specially crafted SMB traffic to the affected system, trigger memory corruption and execute arbitrary code.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Resource exhaustion (CVE-ID: CVE-2021-47069)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an error within the IPC implementation in Linux kernel. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.
3) Memory leak (CVE-ID: CVE-2023-52610)
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak in net/sched/act_ct.c. A local user can force the kernel to leak memory and perform denial of service attack.
4) Input validation error (CVE-ID: CVE-2024-35845)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the iwl_dbg_tlv_alloc_debug_info() function in drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c. A local user can perform a denial of service (DoS) attack.
5) Use-after-free (CVE-ID: CVE-2021-47356)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the HFC_cleanup() function in drivers/isdn/hardware/mISDN/hfcpci.c. A local user can escalate privileges on the system.
6) Buffer overflow (CVE-ID: CVE-2023-52864)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the wmi_dev_match() function in drivers/platform/x86/wmi.c. A local user can escalate privileges on the system.
7) Improper locking (CVE-ID: CVE-2021-47468)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nj_release() function in drivers/isdn/hardware/mISDN/netjet.c. A local user can perform a denial of service (DoS) attack.
8) Out-of-bounds write (CVE-ID: CVE-2024-36016)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the gsm0_receive() function in drivers/tty/n_gsm.c. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
9) NULL pointer dereference (CVE-ID: CVE-2024-36941)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the nl80211_set_coalesce() function in net/wireless/nl80211.c. A local user can perform a denial of service (DoS) attack.
10) Use-after-free (CVE-ID: CVE-2024-36904)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tcp_twsk_unique() function in net/ipv4/tcp_ipv4.c. A local user can escalate privileges on the system.
11) Use-after-free (CVE-ID: CVE-2024-38570)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the gfs2_gl_hash_clear() function in fs/gfs2/super.c, within the init_sbd() function in fs/gfs2/ops_fstype.c, within the gdlm_ast(), gdlm_bast() and gdlm_put_lock() functions in fs/gfs2/lock_dlm.c, within the glock_blocked_by_withdraw() and gfs2_gl_hash_clear() functions in fs/gfs2/glock.c. A local user can escalate privileges on the system.
12) NULL pointer dereference (CVE-ID: CVE-2022-48793)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the svm_set_nested_state() function in arch/x86/kvm/svm/nested.c. A local user can perform a denial of service (DoS) attack.
13) Buffer overflow (CVE-ID: CVE-2022-48799)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the DEFINE_PER_CPU() and perf_cgroup_switch() functions in kernel/events/core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.