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redhatRedHatRHSA-2021:1171
HistoryApr 13, 2021 - 9:58 a.m.

(RHSA-2021:1171) Important: kernel security and bug fix update

2021-04-1309:58:53
access.redhat.com
48

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

38.3%

JSON

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

Security Fix(es):

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

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

  • 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):

  • Upstream Patch for Gracefully handle DMAR units with no supported address widthsx86/vt-d (BZ#1932201)

  • RHEL8.1 Alpha - ISST-LTE:PNV:Witherspoon-DD2.3:woo: KDUMP hang during shutdown, lpfc loses connection to disks (rootdisk:nvme) (BZ#1934306)

OSVersionArchitecturePackageVersionFilename
RedHat8x86_64perf-debuginfo< 4.18.0-147.44.1.el8_1perf-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
RedHat8aarch64kernel-cross-headers< 4.18.0-147.44.1.el8_1kernel-cross-headers-4.18.0-147.44.1.el8_1.aarch64.rpm
RedHat8s390xbpftool-debuginfo< 4.18.0-147.44.1.el8_1bpftool-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
RedHat8s390xkernel-zfcpdump-modules-extra< 4.18.0-147.44.1.el8_1kernel-zfcpdump-modules-extra-4.18.0-147.44.1.el8_1.s390x.rpm
RedHat8aarch64perf< 4.18.0-147.44.1.el8_1perf-4.18.0-147.44.1.el8_1.aarch64.rpm
RedHat8aarch64kernel-debug-devel< 4.18.0-147.44.1.el8_1kernel-debug-devel-4.18.0-147.44.1.el8_1.aarch64.rpm
RedHat8s390xkernel-debug-modules-extra< 4.18.0-147.44.1.el8_1kernel-debug-modules-extra-4.18.0-147.44.1.el8_1.s390x.rpm
RedHat8s390xkernel-debug-core< 4.18.0-147.44.1.el8_1kernel-debug-core-4.18.0-147.44.1.el8_1.s390x.rpm
RedHat8aarch64kernel-modules-extra< 4.18.0-147.44.1.el8_1kernel-modules-extra-4.18.0-147.44.1.el8_1.aarch64.rpm
RedHat8ppc64lekernel< 4.18.0-147.44.1.el8_1kernel-4.18.0-147.44.1.el8_1.ppc64le.rpm
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

38.3%

JSON
Related for RHSA-2021:1171
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