CVE-2018-20662: canonical ubuntu_linux Improper Input Validation
CVSS: 6.5v3.1MediumModified
AliasesSUSE-SU-2023:4942-1UBUNTU-CVE-2018-20662DEBIAN-CVE-2018-20662SUSE-SU-2023:4690-1
Published 03-01-2019Last modified 05-08-2024
Vulnerability summary
CVE-2018-20662 is a medium (CVSS 6.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 2.26% chance of exploitation in the next 30 days, higher than 82.7% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
2.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 9 · Related 4Timeline
- 03-01-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, because of a wrong return value from PDFDoc::setup) by crafting a PDF file in which an xref data structure is mishandled during extractPDFSubtype processing.
CVSS metrics
5 scores · 3 sources · 3 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 6.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.26%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.26% on 18-09-2026
18-09-202618-10-2026
EPSS score2.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat7 products
- enterprise_linux8.0
- enterprise_linux_desktop7.0
- enterprise_linux_eus8.1 | 8.2 | 8.4 | 8.6
- enterprise_linux_server7.0
- enterprise_linux_server_aus8.2 | 8.4 | 8.6
Suse6 products
- poppler-qt&distro=SUSE Linux Enterprise Server 12 SP5< 0.43.0-16.43.1
- poppler-qt&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 0.43.0-16.43.1
- poppler-qt&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 0.43.0-16.43.1
- poppler&distro=SUSE Linux Enterprise Server 12 SP5< 0.43.0-16.43.1
- poppler&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 0.43.0-16.43.1
Debian2 products
- poppler< 0.71.0-4
- debian_linuxEOL8.0 | 9.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 18.10 | 19.04
Fedoraproject1 product
- fedoraEOL28 | 29 | 30
Freedesktop1 product
- poppler0.72.0
Opensuse1 product
- poppler&distro=openSUSE Leap 15.4< 0.62.0-150000.4.34.1
Ubuntu1 product
- poppler< 0.41.0-0ubuntu1.14 | < 0.62.0-2ubuntu2.9
8 vendors · 20 products
References
19 links
lists.debian.org/debian-lts-announce/2019/03/msg00008.htmlMailing ListX Refsource MLISTThird Party Advisory- gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5fX Refsource MISCPatchThird Party Advisory
Show all 19 references
- lists.debian.org/debian-lts-announce/2020/11/msg00014.htmlMailing ListX Refsource MLISTThird Party Advisory