USN-5026-1: QPDF vulnerabilities

Releases

• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• qpdf - tools for transforming and inspecting PDF files

Details

It was discovered that QPDF incorrectly handled certain malformed PDF
files. A remote attacker could use this issue to cause QPDF to consume
resources, resulting in a denial of service. This issue only affected
Ubuntu 18.04 LTS. (CVE-2018-18020)

It was discovered that QPDF incorrectly handled certain malformed PDF
files. A remote attacker could use this issue to cause QPDF to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2021-36978)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04

• qpdf - 9.1.1-1ubuntu0.1
• libqpdf26 - 9.1.1-1ubuntu0.1

Ubuntu 18.04

• qpdf - 8.0.2-3ubuntu0.1
• libqpdf21 - 8.0.2-3ubuntu0.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2018-18020
• CVE-2021-36978

Related notices

• USN-5026-2: libqpdf21, qpdf, libqpdf-dev