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openSUSE 15.2: 2021:1477-1 Important: Kernel Security Update

opensuse
Calendar Grey November 15, 2021
Dist Opensuse Esm H88
A major security patch for openSUSE Leap 15.2 kernel has been released, fixing 15 security flaws along with 41 bug issues. Please restart your system.
An update that solves 15 vulnerabilities and has 41 fixes is now available

Description

The openSUSE Leap 15.2 kernel was updated to receive various security and

bugfixes.

The following security bugs were fixed:

- CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed

local users to create files with an unintended group ownership, in a

scenario where a directory is SGID to a certain group and is writable by

a user who is not a member of that group. Here, the non-member can

trigger creation of a plain file whose group ownership is that group.

The intended behavior was that the non-member can trigger creation of a

directory (but not a plain file) whose group ownership is that group.

The non-member can escalate privileges by making the plain file

executable and SGID (bnc#1100416 bnc#1129735).

- CVE-2021-33033: The Linux kernel had a use-after-free in cipso_v4_genopt

in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for

the DOI definitions is mishandled, aka CID-ad5d07f4a9cd....

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory update bug fix important kernel system reboot openSUSE

Patch

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.2:

zypper in -t patch openSUSE-2021-1477=1

Package List

- openSUSE Leap 15.2 (noarch):

kernel-devel-5.3.18-lp152.102.1

kernel-docs-5.3.18-lp152.102.1

kernel-docs-html-5.3.18-lp152.102.1

kernel-macros-5.3.18-lp152.102.1

kernel-source-5.3.18-lp152.102.1

kernel-source-vanilla-5.3.18-lp152.102.1

- openSUSE Leap 15.2 (x86_64):

kernel-debug-5.3.18-lp152.102.1

kernel-debug-debuginfo-5.3.18-lp152.102.1

kernel-debug-debugsource-5.3.18-lp152.102.1

kernel-debug-devel-5.3.18-lp152.102.1

kernel-debug-devel-debuginfo-5.3.18-lp152.102.1

kernel-default-5.3.18-lp152.102.1

kernel-default-base-5.3.18-lp152.102.1.lp152.8.49.1

kernel-default-base-rebuild-5.3.18-lp152.102.1.lp152.8.49.1

kernel-default-debuginfo-5.3.18-lp152.102.1

kernel-default-debugsource-5.3.18-lp152.102.1

kernel-default-devel-5.3.18-lp152.102.1

kernel-default-devel-debuginfo-5.3.18-lp152.102.1

kernel-kvmsmall-5.3.18-lp152.102.1

kernel-kvmsmall-debuginfo-5.3.18-lp152.102.1

kernel-kvmsmall-debugsource-5.3.18-lp152.102.1

kernel-kvmsmall-devel-5.3.18-lp152.102.1

kernel-kvmsmall-devel-debuginfo-5.3.18-lp152.102.1

kernel-o...

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References

https://www.suse.com/security/cve/CVE-2018-13405.html

https://www.suse.com/security/cve/CVE-2021-33033.html

https://www.suse.com/security/cve/CVE-2021-34556.html

https://www.suse.com/security/cve/CVE-2021-3542.html

https://www.suse.com/security/cve/CVE-2021-35477.html

https://www.suse.com/security/cve/CVE-2021-3655.html

https://www.suse.com/security/cve/CVE-2021-3715.html

https://www.suse.com/security/cve/CVE-2021-3760.html

https://www.suse.com/security/cve/CVE-2021-3772.html

https://www.suse.com/security/cve/CVE-2021-3896.html

https://www.suse.com/security/cve/CVE-2021-41864.html

https://www.suse.com/security/cve/CVE-2021-42008.html

https://www.suse.com/security/cve/CVE-2021-42252.html

https://www.suse.com/security/cve/CVE-2021-42739.html

https://www.suse.com/security/cve/CVE-2021-43056.html

https://bugzilla.suse.com/1065729

https://bugzilla.suse.com/1085030

https://bugzilla.suse.com/1100416

https://bugzilla.suse.com/1129735

https://bugzilla.suse.com/1152489

https://bugzilla.suse.com/1154353

https://bugzi...

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Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2021:1477-1
Rating: important
Affected Products: openSUSE Leap 15.2 ble.

Topics%20covered

Topics Covered

security advisory update bug fix important kernel system reboot openSUSE

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