CVE-2018-20451 — The process_file function in reader.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

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MEDIUM

The process_file function in reader.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

Published Dec 25, 2018

6.5

MEDIUM

CVSS 3.1

EPSS 0.94%

Description

The process_file function in reader.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.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.94% 0.00936

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00936

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.94% (0.00936)	59.47th	v5 (v2026.06.15)
Sep 20, 2026	0.94% (0.00936)	59.28th	v5 (v2026.06.15)
Jul 20, 2024	0.09% (0.00086)	37.17th	v3 (v2023.03.01)
Apr 26, 2024	0.09% (0.00086)	35.88th	v3 (v2023.03.01)
Mar 15, 2024	0.08% (0.00083)	33.87th	v3 (v2023.03.01)
Feb 8, 2024	0.07% (0.00075)	30.28th	v3 (v2023.03.01)
Mar 7, 2023	0.10% (0.00096)	38.79th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.52% (0.00518)	11.68th	v5 (v2026.06.15)
Apr 14, 2021	0.52% (0.00518)	0.00th	v1

Weaknesses (1)

CWE-125

Out-of-bounds Read

References (1)

https://github.com/uvoteam/libdoc/issues/2
x_refsource_MISCExploitThird Party Advisory

Link	Providers	Tags
https://github.com/uvoteam/libdoc/issues/2		x_refsource_MISCExploitThird Party Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Dec 25, 2018

Updated Sep 16, 2024

Reserved Dec 25, 2018

Link CVE-2018-20451

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-20451

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-20451