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ALSA-2022:1988 — Important: kernel security, bug fix, and enhancement update

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…

bdu:2022-00613

certfr-2022-avi-024 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2022-avi-024

EUVD-2026-33336

fkie_cve-2021-45486

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.

GHSA-jr67-68pw-5xqf

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.

gsd-2021-45486

msrc_CVE-2021-45486 — In the IPv4 implementation in the Linux kernel before 5.12.4 net/ipv4/route.c has an information leak because the hash…

msrc_CVE-2021-45486

OESA-2022-1504 — kernel security update

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 data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.(CVE-2021-4155)

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn t properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.(CVE-2021-45485)

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.(CVE-2021-45486)

openSUSE-SU-2022:0056-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2022:1975 — Red Hat Security Advisory: kernel-rt security and bug fix update

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…

SUSE-SU-2022:0056-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2021-45486

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:14.04:LTS: linux, 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 and 75 more

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.

WID-SEC-W-2022-0232 — Linux Kernel: Mehrere Schwachstellen ermöglichen Offenlegung von Informationen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Informationen offenzulegen.