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.

CVSS v3.0 NVD

7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.67% chance of exploitation in the next 30 days, 76th percentile

Published

2018-04-10

Updated

2024-08-05

Proof-of-concept exploits (1)

• qpdf/qpdf/issues/2025484★ · 2026-09-26

Security advisories

• https://usn.ubuntu.com/3638-1

References

• CVE Record
• NVD entry

Related

• CVE-2018-18020
• CVE-2021-25786
• CVE-2024-24246