CVE-2018-20097 Denial of service in n/a

What is CVE-2018-20097?

CVE-2018-20097 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 12 Dec 2018. 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

There is a SEGV in Exiv2::Internal::TiffParserWorker::findPrimaryGroups of tiffimage_int.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

Weakness: CWE-119

Which versions are affected by CVE-2018-20097?

1 open source package ship an affected version, including exiv2. It affects 6 products.

Products include Debian Debian Linux, Exiv2 Exiv2, Fedoraproject Fedora, Redhat Enterprise Linux Dekstop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2018-20097?

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-2018-20097 being exploited?

There is no known exploitation of CVE-2018-20097 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2018-20097, GHSA-v5fp-vjgx-32cr, PYSEC-2018-118.