SUSE-SU-2021:0744-1 | Mondoo Vulnerability Intelligence

SUSE-SU-2021:0744-1

HIGH8.1

Security update for the Linux Kernel

Published Mar 9, 2021

Modified 5 years ago

Fix available

Details

Description of the patch:

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

CVE-2021-26930: Fixed an improper error handling in blkback's grant mapping (XSA-365 bsc#1181843).
CVE-2021-26931: Fixed an issue where Linux kernel was treating grant mapping errors as bugs (XSA-362 bsc#1181753).
CVE-2021-26932: Fixed improper error handling issues in Linux grant mapping (XSA-361 bsc#1181747).
CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#178372).

The following non-security bug was fixed:

xen/netback: fix spurious event detection for common event case (bsc#1182175).

Affected Packages(14 packages)

cluster-md-kmp-default

SUSE Linux Enterprise High Availability Extension 12 SP2

Fixed in:

4.4.121-92.152.2

cluster-network-kmp-default

SUSE Linux Enterprise High Availability Extension 12 SP2

Fixed in:

4.4.121-92.152.2

dlm-kmp-default

SUSE Linux Enterprise High Availability Extension 12 SP2

Fixed in:

4.4.121-92.152.2

gfs2-kmp-default

SUSE Linux Enterprise High Availability Extension 12 SP2

Fixed in:

4.4.121-92.152.2

ocfs2-kmp-default

SUSE Linux Enterprise High Availability Extension 12 SP2

Fixed in:

4.4.121-92.152.2

kernel-default

SUSE Linux Enterprise Server 12 SP2-BCLSUSE Linux Enterprise Server 12 SP2-LTSSSUSE Linux Enterprise Server for SAP Applications 12 SP2SUSE OpenStack Cloud 7

Fixed in:

4.4.121-92.152.2

kernel-default-base

SUSE Linux Enterprise Server 12 SP2-BCLSUSE Linux Enterprise Server 12 SP2-LTSSSUSE Linux Enterprise Server for SAP Applications 12 SP2SUSE OpenStack Cloud 7

Fixed in:

4.4.121-92.152.2

kernel-default-devel

SUSE Linux Enterprise Server 12 SP2-BCLSUSE Linux Enterprise Server 12 SP2-LTSSSUSE Linux Enterprise Server for SAP Applications 12 SP2SUSE OpenStack Cloud 7

Fixed in:

4.4.121-92.152.2

kernel-devel

SUSE Linux Enterprise Server 12 SP2-BCLSUSE Linux Enterprise Server 12 SP2-LTSSSUSE Linux Enterprise Server for SAP Applications 12 SP2SUSE OpenStack Cloud 7

Fixed in:

4.4.121-92.152.2

kernel-macros

SUSE Linux Enterprise Server 12 SP2-BCLSUSE Linux Enterprise Server 12 SP2-LTSSSUSE Linux Enterprise Server for SAP Applications 12 SP2SUSE OpenStack Cloud 7

Fixed in:

4.4.121-92.152.2

References

https://bugzilla.suse.com/1178372

https://bugzilla.suse.com/1181747

https://bugzilla.suse.com/1181753

https://bugzilla.suse.com/1181843

https://bugzilla.suse.com/1182175

https://lists.suse.com/pipermail/sle-security-updates/2021-March/008446.html

https://www.suse.com/security/cve/CVE-2020-28374/

https://www.suse.com/security/cve/CVE-2021-26930/

https://www.suse.com/security/cve/CVE-2021-26931/

https://www.suse.com/security/cve/CVE-2021-26932/

https://www.suse.com/support/security/rating/

https://www.suse.com/support/update/announcement/2021/suse-su-20210744-1/

CVSS Analysis

CVSS v3.1

8.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

NoneA:N

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

Upstream

CVE-2020-28374 CVE-2021-26930 CVE-2021-26931 CVE-2021-26932

Ecosystems

SUSE Linux Enterprise High Availability Extension 12 SP2 SUSE Linux Enterprise Server 12 SP2-BCL SUSE Linux Enterprise Server 12 SP2-LTSS SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE OpenStack Cloud 7

Timeline

PublishedMar 9, 2021

ModifiedMar 9, 2021