CVE-2018-9918 — Uncontrolled Recursion in Project Qpdf

CWE-674 — Uncontrolled RecursionCWE-400 — Uncontrolled Resource Consumption10 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.4%
top 39.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Qpdf Project QpdfCanonical Ubuntu Linux
Timeline
PublishedApr 10
Latest updateMay 13

Description

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 vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶Debianqpdf_project/qpdf< 8.0.2-3+3

Also affects: Ubuntu Linux 14.04, 16.04, 17.10

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-mcgj-mgj8-8cr3: libqpdf↗2022-05-13
▶
OSV
CVE-2018-9918: libqpdf↗2018-04-10
▶
CVEList
CVE-2018-9918: libqpdf↗2018-04-10
▶

📋Vendor Advisories

3
Ubuntu
QPDF vulnerabilities↗2018-05-07
▶
Red Hat
qpdf: stack exhaustion in QPDFObjectHandle and QPDF_Dictionary classes in libqpdf.a↗2018-04-10
▶
Debian
CVE-2018-9918: qpdf - libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but ...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-9918 qpdf: stack exhaustion in QPDFObjectHandle and QPDF_Dictionary classes in libqpdf.a↗2018-04-12
▶
Bugzilla
CVE-2018-9918 qpdf: stack exhaustion in QPDFObjectHandle and QPDF_Dictionary classes in libqpdf.a [epel-6]↗2018-04-12
▶
Bugzilla
CVE-2018-9918 qpdf: stack exhaustion in QPDFObjectHandle and QPDF_Dictionary classes in libqpdf.a [fedora-all]↗2018-04-12
▶
CVE-2018-9918 — Uncontrolled Recursion in Project Qpdf | cvebase