CVE-2020-12767 Denial of service in n/a

What is CVE-2020-12767?

CVE-2020-12767 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error.

Weakness: CWE-369

Which versions are affected by CVE-2020-12767?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Libexif Project Libexif, Opensuse Leap.

How do I fix CVE-2020-12767?

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-2020-12767 being exploited?

There is no known exploitation of CVE-2020-12767 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-2020-12767, DEBIAN-CVE-2020-12767, GHSA-rwjh-wvc7-p2gm, UBUNTU-CVE-2020-12767.