CVE-2018-20453: libdoc_project libdoc Out-of-bounds Read
CVSS: 6.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-20453DEBIAN-CVE-2018-20453
Published 25-12-2018Last modified 16-09-2024
Vulnerability summary
CVE-2018-20453 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in libdoc_project libdoc. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.5/10
010
Medium · v3.0 (NVD)EPSS score
0.94%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 25-12-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
The getlong function in numutils.c in libdoc through 2017-10-23 has a heap-based buffer over-read that allows attackers to cause a denial of service (application crash) via a crafted file.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.94%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.94% on 20-09-2026
20-09-202620-10-2026
EPSS score0.94%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibdoc
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- catdocAll versions (No fix recorded)
Libdoc_project1 product
- libdoc≤ 20171023
Ubuntu1 product
- catdocAll versions (No fix recorded)
3 vendors · 3 products
