CVE-2018-20451
The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-20451- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-20451- Updated
- 2026-11-02
EUVDEUVD-2018-13006 No score
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.
- Record
EUVD-2018-13006- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2wch-pp5g-pc57
The process_file function in reader.c in libdoc through 2017-10-23 has a heap-based buffer over...
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.
- Record
GHSA-2wch-pp5g-pc57- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-20451- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2018-20451- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2018-20451- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
catdocDebian:12 |
All versions, plus listed versions 1:0.95-51:0.95-61:0.95-6~deb12u1 |
None known |
catdocDebian:13 |
All versions, plus listed versions 1:0.95-6 |
None known |
catdocDebian:14 |
All versions, plus listed versions 1:0.95-6 |
None known |
catdocUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.94.4-1.11:0.94.3~git20151007.fd634c2+dfsg-21:0.94.3~git20151007.fd634c2+dfsg-31:0.94.3~git20160113.dbc9ec6+dfsg-11:0.94.3~git20160113.dbc9ec6+dfsg-1+deb9u1build0.16.04.11:0.94.3~git20160113.dbc9ec6+dfsg-1+deb9u1ubuntu0.1~esm1 |
None known |
catdocUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:0.95-31:0.95-4.11:0.95-4.1ubuntu0.18.04.1~esm1 |
None known |
catdocUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 1:0.95-4.11:0.95-4.1ubuntu0.20.04.1~esm1 |
None known |
catdocUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 1:0.95-4.11:0.95-4.21:0.95-51:0.95-5ubuntu0.22.04.1~esm1 |
None known |
catdocUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 1:0.95-51:0.95-5build11:0.95-5ubuntu0.24.04.1~esm1 |
None known |
catdocUbuntu:25.10 |
All versions, plus listed versions 1:0.95-5build11:0.95-6 |
None known |
catdocUbuntu:26.10 |
All versions, plus listed versions 1:0.95-6build1 |
None known |
catdocUbuntu:26.04:LTS |
All versions, plus listed versions 1:0.95-61:0.95-6build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20451 is a medium vulnerability (CVSS 6.5) in Libdoc Project Libdoc, published December 25, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.94%, the 60th percentile. No source names a fixed version.