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SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0835-1)
high Nessus Plugin ID 147875
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Synopsis
The remote SUSE host is missing one or more security updates.Description
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).
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
To install this SUSE 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 :
SUSE Linux Enterprise Server for SAP 12-SP3 :
zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-828=1
SUSE Linux Enterprise Server for SAP 12-SP2 :
zypper in -t patch SUSE-SLE-SAP-12-SP2-2021-835=1
SUSE Linux Enterprise Server 12-SP3-LTSS :
zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-828=1
SUSE Linux Enterprise Server 12-SP2-LTSS :
zypper in -t patch SUSE-SLE-SERVER-12-SP2-2021-835=1
See Also
https://bugzilla.suse.com/show_bug.cgi?id=1165631
https://bugzilla.suse.com/show_bug.cgi?id=1176931
https://bugzilla.suse.com/show_bug.cgi?id=1177513
https://bugzilla.suse.com/show_bug.cgi?id=1178684
https://bugzilla.suse.com/show_bug.cgi?id=1179616
https://www.suse.com/security/cve/CVE-2020-0429/
https://www.suse.com/security/cve/CVE-2020-1749/
https://www.suse.com/security/cve/CVE-2020-25645/
https://www.suse.com/security/cve/CVE-2020-27786/
Plugin Details
Severity: High
ID: 147875
File Name: suse_SU-2021-0835-1.nasl
Version: 1.4
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 3/18/2021
Updated: 1/9/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.4
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2020-27786
CVSS v3
Risk Factor: High
Base Score: 8.1
Temporal Score: 7.3
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2020-28374
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_180-94_138-default-debuginfo, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_180-94_138-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_121-92_149-default
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/17/2021
Vulnerability Publication Date: 9/9/2020
Reference Information
CVE: CVE-2020-0429, CVE-2020-1749, CVE-2020-25645, CVE-2020-27786, CVE-2020-28374