CVE-2017-13704 Integer overflow in n/a

What is CVE-2017-13704?

CVE-2017-13704 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 2 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.

Weakness: CWE-20

Which versions are affected by CVE-2017-13704?

It affects 8 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Novell Leap, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 2 more.

How do I fix CVE-2017-13704?

Upgrade to a fixed version.

Is CVE-2017-13704 being exploited?

There is no known exploitation of CVE-2017-13704 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-2017-13704, CLEANSTART-2026-PF23839, DEBIAN-CVE-2017-13704, GHSA-mprq-hpvv-8wcc.