CVE-2020-25645 Information disclosure in kernel

What is CVE-2020-25645?

CVE-2020-25645 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 13 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is 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. The main threat from this vulnerability is to data confidentiality.

Weakness: CWE-319

Which versions are affected by CVE-2020-25645?

It affects 7 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Netapp Hci Compute Node Bios, Netapp Solidfire \& Hci Management Node, Netapp Solidfire \& Hci Storage Node and 1 more.

How do I fix CVE-2020-25645?

Upgrade to a fixed version.

Is CVE-2020-25645 being exploited?

There is no known exploitation of CVE-2020-25645 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-25645, GHSA-gpwj-xrhp-6hpw, SUSE-SU-2020:3433-1, UBUNTU-CVE-2020-25645.