CVE-2017-17815 Denial of service in n/a

What is CVE-2017-17815?

CVE-2017-17815 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 21 Dec 2017. 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 Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c that will cause a remote denial of service attack, because of a missing check for the relationship between minimum and maximum parameter counts.

Weakness: CWE-754

Which versions are affected by CVE-2017-17815?

It affects 2 products.

Products include Canonical Ubuntu Linux, Nasm Netwide Assembler.

How do I fix CVE-2017-17815?

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-2017-17815 being exploited?

There is no known exploitation of CVE-2017-17815 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-2017-17815, GHSA-hc7p-6f7f-566f, UBUNTU-CVE-2017-17815.