[USN-5026-2] QPDF vulnerabilities
Leonidas S. Barbosa
leo.barbosa at canonical.com
Mon Aug 2 15:12:42 UTC 2021
==========================================================================
Ubuntu Security Notice USN-5026-2
August 02, 2021
qpdf vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
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)
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
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