PT-2019-4693 · Linux+4 · Linux Kernel+4

Wade Mealing + 1 · Published 2019-12-04 · Updated 2021-07-15 · CVE-2020-1749

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending the data unencrypted. This would allow anyone in between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Cleartext Transmission of Sensitive Information

Weakness Enumeration

CWE-319

Related Identifiers

BDU:2020-01065

CESA-2020_1567

CESA-2020_1769

CESA-2020_4060

CVE-2020-1749

DLA-2241-1

DLA-2241-2

OPENSUSE-SU-2020:1325-1

OPENSUSE-SU-2020_1325-1

OPENSUSE-SU-2021:0242-1

OPENSUSE-SU-2021_0242-1

RHSA-2020:1567

RHSA-2020:1769

RHSA-2020:4060

RHSA-2020:4062

RHSA-2020_1567

RHSA-2020_1769

RHSA-2020_4060

RHSA-2020_4062

RHSA-2021:0354

SUSE-SU-2020:0868-1

SUSE-SU-2020:0891-1

SUSE-SU-2020:0940-1

SUSE-SU-2020:1049-1

SUSE-SU-2020:1452-1

SUSE-SU-2020:1486-1

SUSE-SU-2020:1779-1

SUSE-SU-2020:2502-1

SUSE-SU-2020:2509-1

SUSE-SU-2020:2517-1

SUSE-SU-2020:2524-1

SUSE-SU-2020:2525-1

SUSE-SU-2020:2534-1

SUSE-SU-2020:2540-1

SUSE-SU-2020:2541-1

SUSE-SU-2020:2574-1

SUSE-SU-2020:2575-1

SUSE-SU-2020:2610-1

SUSE-SU-2020:2623-1

SUSE-SU-2020:2999-1

SUSE-SU-2020:3014-1

SUSE-SU-2020:3219-1

SUSE-SU-2020:3648-1

SUSE-SU-2020:3656-1

SUSE-SU-2020_0891-1

SUSE-SU-2020_1049-1

SUSE-SU-2020_1486-1

SUSE-SU-2021:0835-1

SUSE-SU-2021:1074-1

SUSE-SU-2021:1148-1

SUSE-SU-2021:1617-1

SUSE-SU-2021:1623-1

USN-4388-1

USN-4390-1

USN-4391-1

Affected Products

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 1145

• https://osv.dev/vulnerability/SUSE-SU-2020:0940-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-1749 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2610-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2525-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2020-5866.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1623-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2541-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1779-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-12464 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4391-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4390-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:1074-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-1749 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2524-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2509-1 · Vendor Advisory