SUSE-SU-2022:2520-1

SUSE-SU-2022:2520-1 · Security update for the Linux Kernel

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The SUSE Linux Enterprise 15 SP4 kernel was updated. The following security bugs were fixed: - CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657). - CVE-2022-34918: Fixed a buffer overflow with nft_set_elem_init() that could be used by a local attacker to escalate privileges (bnc#1201171). - CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050). - CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599). - CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251). - CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829). - CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762). - CVE-2022-33743: Fixed a Denial of Service related to XDP (bsc#1200763). - CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bnc#1199487). - CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bnc#1200619). - CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692) - CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482). - CVE-2022-1998: Fixed a use after free in the file system notify functionality (bnc#1200284). - CVE-2022-1966: Fixed a use-after-free vulnerability in the Netfilter subsystem. This flaw allowed a local attacker with user access to cause a privilege escalation issue. (bnc#1200015) - CVE-2022-1852: Fixed a null-ptr-deref in the kvm module which can lead to DoS. (bsc#1199875) - CVE-2022-1789: Fixed a NULL pointer dereference when shadow paging is enabled. (bnc#1199674) - CVE-2022-1508: Fixed an out-of-bounds read flaw that could cause the system to crash. (bsc#1198968) - CVE-2022-1671: Fixed a null-ptr-deref bugs in net/rxrpc/server_key.c, unprivileged users could easily trigger it via ioctl. (bsc#1199439) - CVE-2022-1651: Fixed a bug in ACRN Device Model emulates virtual NICs in VM. This flaw may allow a local privileged attacker to leak kernel unauthorized information and also cause a denial of service problem. (bsc#1199433) - CVE-2022-29582: Fixed a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently. (bnc#1198811) - CVE-2022-0494: Fixed a kernel information leak flaw in the scsi_ioctl function. This flaw allowed a local attacker with a special user privilege to create issues with confidentiality. (bnc#1197386) - CVE-2021-4204: Fixed a vulnerability that allows local attackers to escalate privileges on affected installations via ebpf. (bnc#1194111) - CVE-2022-23222: Fixed a bug that allowed local users to gain privileges. (bnc#1194765) - CVE-2022-0264: Fixed a vulnerability in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. (bnc#1194826) - CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197227) - CVE-2022-1205: Fixed null pointer dereference and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198027) - CVE-2022-1198: Fixed an use-after-free vulnerability that allow an attacker to crash the linux kernel by simulating Amateur Radio (bsc#1198030). - CVE-2022-1972: Fixed a buffer overflow in nftable that could lead to privilege escalation. (bsc#1200019) - CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650) - CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650) - CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650) - CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650) - CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650) - CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507). - CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063). - CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505). - CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426). - CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space. (bsc#1200144) - CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb. (bsc#1199426) - CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577) - CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and firmware download routine. (bnc#1199605) - CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not considered, which lead to a move_data_page NULL pointer dereference (bsc#1195987). - CVE-2022-0617: Fixed a null pointer dereference in UDF file system functionality. A local user could crash the system by triggering udf_file_write_iter() via a malicious UDF image. (bsc#1196079) - CVE-2022-26490: Fixed a buffer overflow in the st21nfca driver. An attacker with adjacent NFC access could crash the system or corrupt the system memory. (bsc#1196830) - CVE-2021-45402: The check_alu_op function in kernel/bpf/verifier.c did not properly update bounds while handling the mov32 instruction, which allowed local users to obtain potentially sensitive address information (bsc#1196130). The following non-security bugs were fixed: - ACPI: APEI: fix return value of __setup handlers (git-fixes). - ACPI/APEI: Limit printable size of BERT table data (git-fixes). - ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 (git-fixes). - ACPI: bus: Avoid using CPPC if not supported by firmware (bsc#1199793). - ACPICA: Avoid cache flush inside virtual machines (git-fixes). - ACPICA: Avoid walking the ACPI Namespace if it is not there (git-fixes). - ACPI: CPPC: Assume no transition latency if no PCCT (git-fixes). - ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (git-fixes). - ACPI: docs: enumeration: Amend PWM enumeration ASL example (git-fixes). - ACPI: docs: enumeration: Discourage to use custom _DSM methods (git-fixes). - ACPI: docs: enumeration: Remove redundant .owner assignment (git-fix

Corrección disponible

Publicación

2022-07-21T16:35:09Z

Actualización

2026-02-04T04:08:13.705110Z

Pila tecnológica: system

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