Vulnerability in Qpdf Project
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 · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (75.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: -0.000
Affected products
- Qpdf Project
- Canonical Ubuntu Linux — versions 14.04, 16.04, 17.10
Weakness classification (CWE)
References
- usn.ubuntu.com/3638-1/ (vendor-advisory, Third Party Advisory)
- github.com/qpdf/qpdf/commit/b4d6cf6836ce025ba1811b7bbec52680c7204223 (Patch)
- github.com/qpdf/qpdf/issues/202 (Exploit, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-9918?
- CVE-2018-9918 is a high-severity vulnerability in Qpdf Project, classified under Uncontrolled Recursion. CVSS score: 7.8/10. Published 2018-04-10.
- How severe is CVE-2018-9918?
- High severity. CVSS v3 base score is 7.8 out of 10.