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redhatRedHatRHSA-2021:0354
HistoryFeb 02, 2021 - 9:45 a.m.

(RHSA-2021:0354) Important: kernel-alt security update

2021-02-0209:45:22
access.redhat.com
167
linux kernel-alt
security update
locking issue
use-after-free
ipv6 protocols
ipsec tunnel
fs block_dev.

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

7.8

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

EPSS

0.002

Percentile

55.1%

JSON

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

  • kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)

  • kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749)

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

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.

OSVersionArchitecturePackageVersionFilename
RedHat7s390xkernel-kdump< 4.14.0-115.35.1.el7akernel-kdump-4.14.0-115.35.1.el7a.s390x.rpm
RedHat7s390xkernel-debug-debuginfo< 4.14.0-115.35.1.el7akernel-debug-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
RedHat7ppc64lekernel-bootwrapper< 4.14.0-115.35.1.el7akernel-bootwrapper-4.14.0-115.35.1.el7a.ppc64le.rpm
RedHat7s390xkernel-kdump-devel< 4.14.0-115.35.1.el7akernel-kdump-devel-4.14.0-115.35.1.el7a.s390x.rpm
RedHat7ppc64lekernel-debug< 4.14.0-115.35.1.el7akernel-debug-4.14.0-115.35.1.el7a.ppc64le.rpm
RedHat7ppc64lekernel-debuginfo< 4.14.0-115.35.1.el7akernel-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm
RedHat7s390xkernel-devel< 4.14.0-115.35.1.el7akernel-devel-4.14.0-115.35.1.el7a.s390x.rpm
RedHat7s390xpython-perf-debuginfo< 4.14.0-115.35.1.el7apython-perf-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm
RedHat7ppc64lekernel-debug-devel< 4.14.0-115.35.1.el7akernel-debug-devel-4.14.0-115.35.1.el7a.ppc64le.rpm
RedHat7s390xkernel-debug-devel< 4.14.0-115.35.1.el7akernel-debug-devel-4.14.0-115.35.1.el7a.s390x.rpm
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1-10 of 341

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CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

7.8

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

EPSS

0.002

Percentile

55.1%

JSON
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