SUSE update for the Linux Kernel (Live Patch 29 for SLE 15 SP2)



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-36516
CVE-2022-1116
CWE-ID CWE-327
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
SUSE Linux Enterprise Server for SAP Applications
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Module for Live Patching
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

kernel-livepatch-SLE15-SP2_Update_29-debugsource
Operating systems & Components / Operating system package or component

kernel-livepatch-5_3_18-150200_24_126-default-debuginfo
Operating systems & Components / Operating system package or component

kernel-livepatch-5_3_18-150200_24_126-default
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU66811

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-36516

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) or MitM attacks.

The vulnerability exists due to an error in the mixed IPID assignment method with the hash-based IPID assignment policy in Linux kernel. A remote attacker can inject data into a victim's TCP session or terminate that session.

Mitigation

Update the affected package the Linux Kernel (Live Patch 29 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications: 15-SP2

SUSE Linux Enterprise Server: 15-SP2

SUSE Linux Enterprise Module for Live Patching: 15-SP2

SUSE Linux Enterprise High Performance Computing: 15-SP2

kernel-livepatch-SLE15-SP2_Update_29-debugsource: before 2-150200.2.1

kernel-livepatch-5_3_18-150200_24_126-default-debuginfo: before 2-150200.2.1

kernel-livepatch-5_3_18-150200_24_126-default: before 2-150200.2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223088-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Integer overflow

EUVDB-ID: #VU63633

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1116

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local user to execute code with elevated privileges.

The vulnerability exists due to integer overflow in the io_uring subsystem in the Linux kernel. A local user can trigger integer overflow, cause a denial of service or execute arbitrary code with elevated privileges.

Mitigation

Update the affected package the Linux Kernel (Live Patch 29 for SLE 15 SP2) to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications: 15-SP2

SUSE Linux Enterprise Server: 15-SP2

SUSE Linux Enterprise Module for Live Patching: 15-SP2

SUSE Linux Enterprise High Performance Computing: 15-SP2

kernel-livepatch-SLE15-SP2_Update_29-debugsource: before 2-150200.2.1

kernel-livepatch-5_3_18-150200_24_126-default-debuginfo: before 2-150200.2.1

kernel-livepatch-5_3_18-150200_24_126-default: before 2-150200.2.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2022/suse-su-20223088-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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