CVE-2017-9936 Denial of service in n/a

What is CVE-2017-9936?

CVE-2017-9936 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 26 Jun 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In LibTIFF 4.0.8, there is a memory leak in tif_jbig.c. A crafted TIFF document can lead to a memory leak resulting in a remote denial of service attack.

Weakness: CWE-772

Which versions are affected by CVE-2017-9936?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Libtiff Libtiff.

How do I fix CVE-2017-9936?

Apply the vendor's patch.

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-2017-9936 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-9936 exists.

Public exploit code: 1 Exploit-DB entry.

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-2017-9936, DEBIAN-CVE-2017-9936, DLA-1023-1, GHSA-5ffm-f598-q72q, UBUNTU-CVE-2017-9936.