CVE-2019-7665 Denial of service in n/a

What is CVE-2019-7665?

CVE-2019-7665 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In elfutils 0.175, a heap-based buffer over-read was discovered in the function elf32_xlatetom in elf32_xlatetom.c in libelf. A crafted ELF input can cause a segmentation fault leading to denial of service (program crash) because ebl_core_note does not reject malformed core file notes.

Weakness: CWE-125

Which versions are affected by CVE-2019-7665?

It affects 11 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Elfutils Project Elfutils, Opensuse Leap, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop and 5 more.

How do I fix CVE-2019-7665?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-7665 being exploited?

There is no known exploitation of CVE-2019-7665 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 ALPINE-CVE-2019-7665, DEBIAN-CVE-2019-7665, GHSA-j877-4r2v-qxff, UBUNTU-CVE-2019-7665.