CVE-2019-7308 Information disclosure in n/a

What is CVE-2019-7308?

CVE-2019-7308 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 1 Feb 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.

Weakness: CWE-189

Which versions are affected by CVE-2019-7308?

It affects 3 products.

Products include Canonical Ubuntu Linux, Linux kernel, Opensuse Leap.

How do I fix CVE-2019-7308?

Apply the vendor's patch.

Is CVE-2019-7308 being exploited?

There is no known exploitation of CVE-2019-7308 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-2019-7308, GHSA-vww8-62hf-x3fx, UBUNTU-CVE-2019-7308.