Affected: AlmaLinux:8: bpftool, AlmaLinux:8: kernel, AlmaLinux:8: kernel-abi-stablelists, AlmaLinux:8: kernel-core, AlmaLinux:8: kernel-cross-headers, AlmaLinux:8: kernel-debug, AlmaLinux:8: kernel-debug-core, AlmaLinux:8: kernel-debug-devel, AlmaLinux:8: kernel-debug-modules, AlmaLinux:8: kernel-debug-modules-extra and 10 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

* kernel: avoid cyclic entity chains due to malformed USB descriptors (CVE-2020-0404)

* kernel: speculation on incompletely validated data on IBM Power9 (CVE-2020-4788)

* kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974)

* kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941)

* kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (CVE-2021-3612)

* kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669)

* kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743)

* kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (CVE-2021-3744)

* kernel: possible use-after-free in bluetooth module (CVE-2021-3752)

* kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks (CVE-2021-3759)

* kernel: DoS in ccp_run_aes_gcm_cmd() function (CVE-2021-3764)

* kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772)

* kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients (CVE-2021-3773)

* kernel: possible leak or coruption of data residing on hugetlbfs (CVE-2021-4002)

* kernel: security regressi…

Withdrawn by the publisher.

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

Affected: openEuler:20.03-LTS-SP1: kernel, openEuler:20.03-LTS-SP2: kernel, openEuler:20.03-LTS-SP3: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.(CVE-2021-4203) In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-150694665References: Upstream kernel.(CVE-2021-39633) An unprivileged write to the file handler flaw in the Linux kernel s control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2021-4197) A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.(CVE-2021-4202)

Security update for the Linux Kernel

kernel: avoid cyclic entity chains due to malformed USB descriptors kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c kernel: use-after-free in nouveau kernel module kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() kernel: possible use-after-free in bluetooth module kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks kernel: DoS in ccp_run_aes_gcm_cmd() function kernel: sctp: Invalid chunks may be used to remotely remove existing associations kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients kernel: stack information leak in infiniband RDMA kernel: possible leak or coruption of data residing on hugetlbfs kernel: security regression for CVE-2018-13405 kernel: fget: check that the fd still exists after getting a ref to it kernel: KVM: SVM: out-of-bounds read/write in sev_es_string_io kernel: Buffer overwrite in decode_nfs_fh function kernel: cgroup: Use open-time creds and namespace for migration perm checks kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets…

Security update for the Linux Kernel

Affected: Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe, Ubuntu:Pro:16.04:LTS: linux-kvm and 89 more

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in IBM Spectrum Protect ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, beliebigen Code auszuführen, seine Rechte zu erweitern oder beliebigen Code mit Root-Rechten auszuführen.