SB2022122153 - SUSE update for the Linux Kernel (Live Patch 25 for SLE 15 SP3)
Published: December 21, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2022-3545)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the area_cache_get() function in drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
2) Use-after-free (CVE-ID: CVE-2022-3586)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the way the sch_sfb enqueue function used the socket buffer (SKB) cb
field after the same SKB had been enqueued (and freed) into a child
qdisc. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2022-3640)
The vulnerability allows an attacker to compromise the affected system.
The vulnerability exists due to a use-after-free error in the 2cap_conn_del() function in net/bluetooth/l2cap_core.c in Linux kernel. An attacker with physical proximity to device can trigger a use-after-free error and execute arbitrary code on the system.
4) Buffer overflow (CVE-ID: CVE-2022-4139)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the i915 kernel driver on Linux kernel. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
5) Stack-based buffer overflow (CVE-ID: CVE-2022-4378)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the __do_proc_dointvec() function. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.
6) Buffer overflow (CVE-ID: CVE-2022-43945)
The vulnerability allows a remote attacker to perform a denial of service attacl.
The vulnerability exists due to a boundary error within the Linux kernel NFSD implementation. A remote attacker can send the RPC message over TCP with garbage data added at the end of the message, trigger memory corruption and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.