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redhatRedHatRHSA-2021:1376
HistoryApr 27, 2021 - 6:21 a.m.

(RHSA-2021:1376) Important: kernel security and bug fix update

2021-04-2706:21:53
access.redhat.com
71

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.003 Low

EPSS

Percentile

65.7%

JSON

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

Security Fix(es):

  • kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)

  • kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)

  • kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

  • kernel: use-after-free in fs/block_dev.c (CVE-2020-15436)

  • kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)

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):

  • [infiniband] Backport Request to fix Multicast Sendonly joins (BZ#1937820)
OSVersionArchitecturePackageVersionFilename
RedHat7ppc64lekernel-tools-libs-devel< 3.10.0-957.72.1.el7kernel-tools-libs-devel-3.10.0-957.72.1.el7.ppc64le.rpm
RedHat7x86_64perf< 3.10.0-957.72.1.el7perf-3.10.0-957.72.1.el7.x86_64.rpm
RedHat7x86_64python-perf-debuginfo< 3.10.0-957.72.1.el7python-perf-debuginfo-3.10.0-957.72.1.el7.x86_64.rpm
RedHat7ppc64kernel-tools-debuginfo< 3.10.0-957.72.1.el7kernel-tools-debuginfo-3.10.0-957.72.1.el7.ppc64.rpm
RedHat7ppc64perf-debuginfo< 3.10.0-957.72.1.el7perf-debuginfo-3.10.0-957.72.1.el7.ppc64.rpm
RedHat7ppc64kernel-debug-devel< 3.10.0-957.72.1.el7kernel-debug-devel-3.10.0-957.72.1.el7.ppc64.rpm
RedHat7ppc64lekernel-devel< 3.10.0-957.72.1.el7kernel-devel-3.10.0-957.72.1.el7.ppc64le.rpm
RedHat7s390xpython-perf-debuginfo< 3.10.0-957.72.1.el7python-perf-debuginfo-3.10.0-957.72.1.el7.s390x.rpm
RedHat7s390xkernel-devel< 3.10.0-957.72.1.el7kernel-devel-3.10.0-957.72.1.el7.s390x.rpm
RedHat7ppc64lepython-perf< 3.10.0-957.72.1.el7python-perf-3.10.0-957.72.1.el7.ppc64le.rpm
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8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.003 Low

EPSS

Percentile

65.7%

JSON
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