CVE-2019-9903 Denial of service in n/a

What is CVE-2019-9903?

CVE-2019-9903 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 21 Mar 2019. 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

PDFDoc::markObject in PDFDoc.cc in Poppler 0.74.0 mishandles dict marking, leading to stack consumption in the function Dict::find() located at Dict.cc, which can (for example) be triggered by passing a crafted pdf file to the pdfunite binary.

Weakness: CWE-787

Which versions are affected by CVE-2019-9903?

It affects 8 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Freedesktop Poppler, Redhat Enterprise Linux, Redhat Enterprise Linux Eus and 2 more.

How do I fix CVE-2019-9903?

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-2019-9903 being exploited?

There is no known exploitation of CVE-2019-9903 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-2019-9903, GHSA-7xgf-6fqh-86mv, UBUNTU-CVE-2019-9903.