QID 174806

Date Published: 2021-03-25

QID 174806: SUSE Enterprise Linux Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP2) (SUSE-SU-2021:0835-1)

This update for the Linux Kernel 4.4.121-92_149 fixes several issues.

The following security issues were fixed:

- CVE-2020-27786: Fixed a potential user after free which could have led
to memory corruption or privilege escalation (bsc#1179616).
- 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#1178684).
- CVE-2020-25645: Fixed an issue where the traffic between two Geneve
endpoints may have been unencrypted when IPsec was configured to encrypt
traffic for the specific UDP port used by the GENEVE tunnel allowing
anyone between the two endpoints to read the traffic unencrypted
(bsc#1177513).
- CVE-2020-0429: Fixed a potential memory corruption due to a use after
free which could have led local escalation of privilege with System
execution privileges needed (bsc#1176931).
- CVE-2020-1749: Fixed an issue in some networking protocols in IPsec,
such as VXLAN and GENEVE tunnels over IPv6 where the kernel was not
correctly routing tunneled data over the encrypted link rather sending
the data unencrypted (bsc#1165631).

Successful exploitation allows attacker to compromise the system.

CVSS V3 rated as Critical - 8.1 severity.

CVSS V2 rated as High - 7.2 severity.

Solution

Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:0835-1 to address this issue and obtain further details.

Vendor References

SUSE-SU-2021:0835-1 - lists.suse.com/pipermail/sle-security-updates/2021-March/008495.html

CVEs related to QID 174806

CVE-2020-1749 | CVE-2020-0429 | CVE-2020-27786 | CVE-2020-28374 | CVE-2020-25645 |

Software Advisories

Advisory ID	Software	Component	Link
SUSE-SU-2021:0835-1	SUSE Enterprise Linux		lists.suse.com/pipermail/sle-security-updates/2021-March/008495.html

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