Improper input validation in Freedesktop Poppler
CVE-2018-20650
A reachable Object::dictLookup assertion in Poppler 0.72.0 allows attackers to cause a denial of service due to the lack of a check for the dict data type, as demonstrated by use of the FileSpec class (in FileSpec.cc) in pdfdetach.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Freedesktop Poppler — versions 0.72.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0, 10.0
- Red Hat Enterprise Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Eus — versions 8.1, 8.2, 8.4
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 8.2, 8.4, 8.6
- Red Hat Enterprise Linux Server Tus — versions 8.2, 8.4, 8.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gitlab.freedesktop.org/poppler/poppler/issues/704 (Patch, Third Party Advisory, Issue Tracking)
- gitlab.freedesktop.org/poppler/poppler/commit/de0c0b8324e776f0b851485e0fc9622fc… (Patch, Third Party Advisory)
- www.securityfocus.com/bid/106459 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3865-1/ (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2022 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2713 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/09/msg00033.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/11/msg00014.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/09/msg00030.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20650?
- CVE-2018-20650 is a medium-severity vulnerability in Freedesktop Poppler, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2019-01-01.
- How severe is CVE-2018-20650?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-20650 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.