CVE-2018-9918

libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted.

Published: Apr 10, 2018
Updated: Apr 13, 2023
CVE: CVE-2018-9918
Severity: High
Exploit:

CVSS v3:

Severity: High
Score: 7.8
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

Severity: Medium
Score: 6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

CWE-674

Affected Software
References

Software	From	Fixed in
qpdf_project / qpdf	-	8.0.2.x
canonical / ubuntu_linux	16.04	16.04.x
canonical / ubuntu_linux	14.04	14.04.x
canonical / ubuntu_linux	17.10	17.10.x

https://github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223
https://github.com/qpdf/qpdf/issues/202
https://usn.ubuntu.com/3638-1/

Vulnerability Database

CVE-2018-9918