SB2022092701 - SUSE update for the Linux Kernel
Published: September 27, 2022 Updated: March 20, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 15 secuirty vulnerabilities.
1) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2020-36516)
The vulnerability allows a remote attacker to perform a denial of service (DoS) or MitM attacks.
The vulnerability exists due to an error in the mixed IPID assignment method with the hash-based IPID assignment policy in Linux kernel. A remote attacker can inject data into a victim's TCP session or terminate that session.
2) Use-after-free (CVE-ID: CVE-2021-4203)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in sock_getsockopt() function in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() function (and connect() function) in the Linux kernel. A local user can exploit the use-after-free error and crash the system or escalate privileges on the system.
3) Memory leak (CVE-ID: CVE-2022-1012)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to insufficient randomization in the net/ipv4/tcp.c when calculating port offsets in Linux kernel cause by small table perturb size. A remote attacker can cause memory leak and gain access to sensitive information.
4) Out-of-bounds read (CVE-ID: CVE-2022-20368)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary condition within the packet_recvmsg() function in Linux kernel. A local user can trigger an out-of-bounds read error and potentially escalate privileges on the system.
5) Out-of-bounds write (CVE-ID: CVE-2022-20369)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the v4l2_m2m_querybuf() function in v4l2-mem2mem.c. A local user can trigger ab out-of-bounds write and execute arbitrary code with elevated privileges.
6) Input validation error (CVE-ID: CVE-2022-21385)
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 net_rds_alloc_sgs() function in net/rds/message.c in Linux kernel. A local user can perform a denial of service (DoS) attack.
7) Double Free (CVE-ID: CVE-2022-2588)
The vulnerability allows a local user to escalate privileges on the system.
The
vulnerability exists due to a double free error within the network packet scheduler implementation
in the route4_change() function in Linux kernel when removing all references to a route filter
before freeing it. A local user can run a specially crafted program to
crash the kernel or execute arbitrary code.
8) Security restrictions bypass (CVE-ID: CVE-2022-26373)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in Intel CPU processors. A local user can bypass the expected architecture isolation between contexts and gain access to sensitive information on the system.
9) Integer underflow (CVE-ID: CVE-2022-2639)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer underflow within the reserve_sfa_size() function in the openvswitch kernel module in Linux kernel. A local user can trigger an out-of-bounds read error and crash the system or escalate privileges.
10) Input validation error (CVE-ID: CVE-2022-2663)
The vulnerability allows a remote attacker to bypass firewall rules.
The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.
11) Improper update of reference count (CVE-ID: CVE-2022-29581)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper update of reference count in net/sched in Linux kernel. A local user can execute arbitrary code with root privileges.
12) Use-after-free (CVE-ID: CVE-2022-2977)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in the Linux kernel implementation of proxied virtualized TPM devices. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
13) Race condition (CVE-ID: CVE-2022-3028)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. A local user can exploit the race and escalate privileges on the system.
14) Resource management error (CVE-ID: CVE-2022-36879)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the xfrm_expand_policies() function in net/xfrm/xfrm_policy.c. A local user can cause the refcount to be dropped twice and perform a denial of service (DoS) attack.
15) Race condition (CVE-ID: CVE-2022-39188)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within include/asm-generic/tlb.h in the Linux kernel. A local user can exploit the race and escalate privileges on the system.
Note, this only occurs in situations with VM_PFNMAP VMAs.
Remediation
Install update from vendor's website.