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redhatRedHatRHSA-2022:0777
HistoryMar 08, 2022 - 3:37 p.m.

(RHSA-2022:0777) Important: kernel security, bug fix, and enhancement update

2022-03-0815:37:02
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242
kernel packages
linux kernel
local privilege escalation
rdma
tlb flush
dos
use-after-free
intel qat
smb shares
xfs flag
hardware offload
dns lookup
net/sched matching
bsod
xfs metadata
ice bug fix
ceph omnibus
sctp
selinux
mellanox driver update
smartpqi driver update

CVSS2

9

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.009

Percentile

83.4%

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

Security Fix(es):

  • kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

  • kernel: use-after-free in RDMA listen() (CVE-2021-4028)

  • kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

  • kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

  • kernel: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

  • kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • Intel QAT Kernel power up fix (BZ#2016436)

  • RHEL8: DFS provided SMB shares are not accessible following unprivileged access (BZ#2017176)

  • xfs: I_DONTCACHE flag is ignored [xfstests: xfs/177] (BZ#2028533)

  • spec: Support separate tools build (BZ#2031052)

  • block: update to upstream v5.14 (BZ#2034395)

  • Double free of kmalloc-64 cache struct ib_port->pkey_group from module ib_core . (BZ#2038723)

  • RHEL8 - kvm: floating interrupts may get stuck (BZ#2040768)

  • Data corruption on small files served by httpd, which is backed by cifs-mount (BZ#2041528)

  • Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042662)

  • DNS lookup failures when run two times in a row (BZ#2043547)

  • net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043549)

  • Windows guest random Bsod when ‘hv-tlbflush’ enlightenment is enabled (BZ#2048342)

  • OCP node XFS metadata corruption after numerous reboots (BZ#2049291)

  • ice: bug fix series for 8.6 (BZ#2051950)

  • SNO 4.9: NO-CARRIER on pod interface using VF on intel E810-C NIC; IAVF_ERR_ADMIN_QUEUE_ERROR (BZ#2052984)

  • ceph omnibus backport for RHEL-8.6.0 (BZ#2053724)

  • SCTP peel-off with SELinux and containers in OCP (BZ#2054111)

  • Selinux is not allowing SCTP connection setup between inter pod communication in enforcing mode (BZ#2054116)

Enhancement(s):

  • [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 [8.4.0.z] (BZ#2037730)

  • [MCHP 8.5 FEAT] Update smartpqi driver to latest upstream [None8.4.0.z] (BZ#2042498)

CVSS2

9

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.009

Percentile

83.4%