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Ubuntu 16.04 ESM USN-5026-2: QPDF Critical Denial of Service

ubuntu
Calendar Grey August 2, 2021
Dist Ubuntu Esm H88
Mitigating significant security flaws in QPDF for Ubuntu 16.04 ESM. Implement necessary patches to avert possible service interruptions.
Several security issues were fixed in QPDF.

Summary

Several security issues were fixed in QPDF.

Software Description:

- qpdf: tools for transforming and inspecting PDF files

Details:

USN-5026-1 fixed several vulnerabilities in QPDF. This update provides

the corresponding update for Ubuntu 16.04 ESM.

Original advisory 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. (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)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical fix qpdf

Update Instructions

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

Ubuntu 16.04 ESM:
  libqpdf21                       8.0.2-3~16.04.1+esm1
  qpdf                            8.0.2-3~16.04.1+esm1

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

References

https://ubuntu.com/security/notices/USN-5026-2

https://ubuntu.com/security/notices/USN-5026-1

CVE-2018-18020, CVE-2021-36978

Severity
critical
Lowest
Low
Medium
High
Critical

August 02, 2021

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu critical fix qpdf

Package Information

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