CVE-2019-11833 Information disclosure in n/a

What is CVE-2019-11833?

CVE-2019-11833 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 15 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

fs/ext4/extents.c in the Linux kernel through 5.1.2 does not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem.

Weakness: CWE-908

Which versions are affected by CVE-2019-11833?

It affects 15 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop and 9 more.

How do I fix CVE-2019-11833?

Apply the vendor's patch.

Is CVE-2019-11833 being exploited?

There is no known exploitation of CVE-2019-11833 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-2019-11833, GHSA-9ph4-cmpw-4gmf, UBUNTU-CVE-2019-11833.